Plural Nitrogens Or Plural -c(=x)- Groups, Wherein X Is Chalcogen, Attached Indirectly To The Sulfonate Group By Acyclic Nonionic Bonding Patents (Class 562/106)
  • Patent number: 11180696
    Abstract: This disclosure concerns a method of making a ligand for Quantum Dot functionalization, a method of making a functionalized Quantum Dot (QD) with a ligand, and a method of making a transparent luminescent quantum dot thiol-yne nanocomposite with tailorable optical, thermal, and mechanical properties. The prepolymer solution and functionalized Quantum Dot can be used in additive manufacturing.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: November 23, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Darryl A. Boyd, Michael H. Stewart, Kimihiro Susumu, Eunkeu Oh, James P. Wissman
  • Patent number: 10280194
    Abstract: Novel synthesized amino acids of glutamine and lysine that are directly PEGylated with small, monodisperse PEGs, and a novel process for creating novel amino acid monomers using PEGylation. These amino acids are readily incorporated into peptides for a range of different applications.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: May 7, 2019
    Assignee: Clemson University
    Inventors: Modi Wetzler, Paris Lamont Hamilton
  • Publication number: 20140339462
    Abstract: The present invention discloses compounds of 4,4?-diaminostilbene-2,2?-disulphonic acid which are useful as optical brighteners to bleach fibres, cellulose and in particular paper and cardboard.
    Type: Application
    Filed: July 17, 2014
    Publication date: November 20, 2014
    Inventors: Ferruccio Berte', Patrick Alborghetti
  • Patent number: 8748656
    Abstract: The invention relates to methods, compounds, compositions and vehicles for delivering 3-amino-1-propanesulfonic acid (3APS) in a subject, preferably a human subject. The invention encompasses compounds that will yield or generate 3APS, either in vitro or in vivo. Preferred compounds include amino acid prodrugs of 3APS for use, including but not limited to, the prevention and treatment of Alzheimer's disease.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: June 10, 2014
    Assignee: BHI Limited Partnership
    Inventors: Xianqi Kong, Mohamed Atfani, Benoit Bachand, Abderrahim Bouzide, Stéphane Ciblat, Sophie Levesque, David Migneault, Isabelle Valade, Xinfu Wu, Daniel Delorme
  • Publication number: 20140051883
    Abstract: The present invention relates to a surface modification method for improving the dispersion of nanoparticles, and to nanoparticles having improved dispersion properties prepared by the method. More particularly, the present invention relates to a method in which amphoteric compounds are bonded to the surfaces of nanoparticles to improve dispersion at the surfaces of nanoparticles. The present invention also relates to nanoparticles using the method. Both anions and cations are formed on the surfaces of the nanoparticles according to the present invention, and therefore the nanoparticles are electrically stable so as to achieve stability in a wide pH range, are stably dispersed in the event of a high concentration of salts, and the non-specific adsorption thereof is reduced. Novel specific substances or sensors having minimized non-specific adsorption may be produced using the nanoparticles of the present invention.
    Type: Application
    Filed: October 28, 2011
    Publication date: February 20, 2014
    Inventors: Sungjee Kim, Joonhyuck Park, Jutaek Nam, Ho Jin
  • Publication number: 20130225409
    Abstract: Quaternary ammonium, betaine, or sulfobetaine compositions derived from fatty amines, wherein the fatty amine is made by reducing the amide reaction product of a metathesis-derived C10-C17 monounsaturated acid, octadecene-1,18-dioic acid, or their ester derivatives and a secondary amine, are disclosed. Quaternary ammonium, betaine, or sulfobetaine compositions derived from fatty amidoamines, wherein the amidoamine is made by reacting of a metathesis-derived C10-C17 monounsaturated acid, octadecene-1,18-dioic acid, or their ester derivatives and an aminoalkyl-substituted tertiary amine, are also disclosed. The quaternized compositions are advantageously sulfonated or sulfated. In one aspect, the ester derivative of the C10-C17 monoun-saturated acid or octadecene-1,18-dioic acid is a lower alkyl ester. In other aspects, the ester derivative is a modified triglyceride made by self-metathesis of a natural oil or an unsaturated triglyceride made by cross-metathesis of a natural oil with an olefin.
    Type: Application
    Filed: October 25, 2011
    Publication date: August 29, 2013
    Applicant: Stepan Company
    Inventors: Dave R. Allen, Marcos Alonso, Randal J. Bernhardt, Aaron Brown, Sangeeta Ganguly-Mink, Andrew D. Malec, Teresa Manuel, Ronald A. Masters, Lawrence A. Munie, Dennis S. Murphy, Patti Skelton, Brian Sook, Michael R. Terry, Jeremy Aaron Weitgenant, Laura Lee Whitlock, Michael Wiester, Patrick Shane Wolfe
  • Publication number: 20130058990
    Abstract: The present invention relates to a cosmetic composition containing a combination i) of at least one screening agent of the dibenzoylmethane derivative type and ii) of at least one particular hydrophilic or water-soluble merocyanin UV-screening agent, especially corresponding to one of the formulae (I) or (II) below: in which at least one or two of the radicals contain: either an alkylsulfonate radical in its acid or salified form, or one or two hydroxyl radicals. The invention also relates to a process for the radiation-photostabilization of at least one screening agent of the dibenzoylmethane derivative type with an effective amount of at least one particular hydrophilic or water-soluble merocyanin UV-screening agent, especially corresponding to one of the formulae (I) or (II).
    Type: Application
    Filed: March 7, 2011
    Publication date: March 7, 2013
    Applicant: L'OREAL
    Inventors: Herve Richard, Benoit Muller
  • Publication number: 20130053315
    Abstract: Novel polypeptide derivatives having protracted profile of action.
    Type: Application
    Filed: March 22, 2012
    Publication date: February 28, 2013
    Inventors: Jesper Lau, Thomas Kruse Hansen, Kjeld Madsen, Paw Bloch, Florencio Zaragoza Dorwald, Nils Langeland Johansen
  • Patent number: 8334402
    Abstract: Amines and amine derivatives that improve the buffering range, and/or reduce the chelation and other negative interactions of the buffer and the system to be buffered. The reaction of amines or polyamines with various molecules to form polyamines with differing pKa's will extend the buffering range, derivatives that result in polyamines that have the same pKa yields a greater buffering capacity. Derivatives that result in zwitterionic buffers improve yield by allowing a greater range of stability.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: December 18, 2012
    Inventor: Thomas Daly
  • Publication number: 20120309944
    Abstract: The invention relates to growth hormone compounds with a protracted profile. The effect is obtained by linking an albumin binding residue via a hydrophilic spacer to growth hormone variants. Further described are methods of preparing and using such compounds. These growth hormone compounds are based on there altered profile considered particular useful in therapy.
    Type: Application
    Filed: January 24, 2011
    Publication date: December 6, 2012
    Applicant: Novo Nordisk Health Care AG
    Inventors: Carsten Behrens, Nils Langeland Johansen, Henrik Sune Andersen, Leif Noerskov-Lauritsen, Jens Buchardt
  • Patent number: 8324274
    Abstract: A drug delivery system (DDS) for administration of a water soluble, cationic, and amphiphilic pharmaceutically active substance (API) which DDS comprises amorphous particles of <100 nm of a poorly water soluble complex of the API with a Na-salt of N-all-trans-retinoyl cysteic acid methyl ester and/or a Na-salt of N-13-cis-retinoyl cysteic acid methyl ester, which particles are entrapped in nanoparticles formed a Na-salt of N-all-trans-retinoyl cysteic acid methyl ester and/or a Na-salt of N-13-cis-retinoyl cysteic acid methyl ester, the w/w-ratio of Na-salt of N-alltrans-retinoyl cysteic acid methyl ester and/or a Na-salt of N-13-cis-retinoyl cysteic acid methyl ester to the complex is about 0.5:1 to about 20:1. A pharmaceutical composition comprising such a DDS. Methods for preparation of such a DDS and such a pharmaceutical composition. Use of such a DDS and pharmaceutical composition for treatment of cancer.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: December 4, 2012
    Assignee: Ardenia Invesments, Ltd.
    Inventors: Julian Aleksov, Igor Lokot
  • Publication number: 20120277444
    Abstract: Hydroxyamides are synthesized from esters. A process of making hydroxyalkyl amides comprises: reacting an ester with a hydroxyalkyl amine having the formula H2N—R3—OH wherein R3 is a substituted or unsubstituted C2 to C5 alkyl, in the presence of a catalyst in an anhydrous solution to form the hydroxyalkyl amides. Monomers suitable for formation of polymeric articles can utilize these hydroxyamides.
    Type: Application
    Filed: March 8, 2012
    Publication date: November 1, 2012
    Inventors: Shivkumar Mahadevan, Kunisi Venkatasubban
  • Publication number: 20120227545
    Abstract: This invention relates to a process for the recovery of precious metal/s from a precious metal-containing material in an aqueous leach slurry or solution. The process includes the step of contacting the precious metal/s in the leach slurry or solution with a ligand selected from dithiooxamide (rubeanic acid), or a substituted dithiooxamide. The leaching of PGMs, gold and silver from their ores using the ligand of the present invention may take place under aqueous alkaline conditions, avoiding both corrosive acidic conditions and the use of cyanide.
    Type: Application
    Filed: July 21, 2010
    Publication date: September 13, 2012
    Applicant: ANGLO OPERATIONS LIMITED
    Inventors: Diandree Padayachee, Makhosazane Chucky Kunene, Marga Retha Burger, Noko Simon Phala
  • Publication number: 20120053243
    Abstract: To provide a parakeratosis inhibitor, pore reducing agent and skin roughness preventing/ameliorating agent that exhibit capabilities of parakeratosis inhibition, pore reduction, skin roughness prevention/amelioration, etc., and further provide a skin preparation for external use having these capabilities. There are provide a parakeratosis inhibitor and a pore reducing agent each comprising at least one compound selected from the group consisting of a glycine derivative, an aminodicarboxylic acid derivative, an acylaminodicarboxylic acid derivative, a pyrrolidinecarboxylic acid derivative, a piperidinecarboxylic acid derivative, a hexamethyleneiminecarboxylic acid, a beta-alanine derivative and salts of these derivatives.
    Type: Application
    Filed: November 7, 2011
    Publication date: March 1, 2012
    Applicant: SHISEIDO COMPANY, LTD.
    Inventors: Mikiko Kaminuma, Masaru Suetsugu, Toshii Iida, Shinji Inomata, Keiko Takada, Yuji Katsuta
  • Publication number: 20110305632
    Abstract: The present invention relates to a method of making asymmetrical bis(thiosemicarbazones), compounds useful as synthetic intermediates in the method, new bis(thiosemicarbazones) that can be readily accessed by use of the method and methods of treatment and imaging utilising some of the new bis(thiosemicarbazones).
    Type: Application
    Filed: December 11, 2009
    Publication date: December 15, 2011
    Applicant: THE UNIVERSITY OF MELBOURNE
    Inventors: Paul Stephen Donnelly, Brett Michael Paterson
  • Publication number: 20110280815
    Abstract: The present invention provides a composition for inhibiting melanin production to promote skin whitening, which is characterized by containing compounds represented by formula (I): wherein R1, R2 and R3 are defined as herein. The present invention also provides a method for inhibiting melanin production to promote skin whitening by using the same.
    Type: Application
    Filed: August 13, 2010
    Publication date: November 17, 2011
    Applicant: TAIWAN HOPAX CHEMS. MFG. CO., LTD.
    Inventors: Han-Fen HUANG, Shan-Ying Lin
  • Patent number: 8048604
    Abstract: Hydrofluoroalkanesulfonates of the general formula R—O—CXH—CX2—SO3M, where R is selected from the group consisting of alkyl groups, functionalized alkyl groups, and alkenyl groups; X is selected from the group consisting of hydrogen and fluorine with the proviso that at least one X is fluorine; and M is a cation, are made by reacting fluorovinyl ether with aqueous sulfite solution. Organic onium hydrofluoroalkanesulfonates are useful as ionic liquids and photoacid generators.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: November 1, 2011
    Assignee: E.I.du Pont de Nemours and Company
    Inventors: Christopher P. Junk, Mark Andrew Harmer, Andrew Edward Feiring, Frank Leonard Schadt, III, Zoe Schnepp
  • Publication number: 20110196014
    Abstract: Provided are methionine analogs which may be useful for inhibiting protein synthesis, inhibiting microbial growth and/or treating infectious diseases. In some instances, the analogs exhibit bactericidal, antibacterial, anti-infective, antimicrobial, sporicidal, disinfectant, antifungal and/or antiviral properties. Also provided are methods of treatment and methods of preparation, as well as kits and unit dosages.
    Type: Application
    Filed: July 31, 2009
    Publication date: August 11, 2011
    Inventors: Mansour Bassiri, Afsaneh Rahimi-Larijani
  • Publication number: 20110137076
    Abstract: Amines and amine derivatives that improve the buffering range, and/or reduce the chelation and other negative interactions of the buffer and the system to be buffered. The reaction of amines or polyamines with various molecules to form polyamines with differing pKa's will extend the buffering range, derivatives that result in polyamines that have the same pKa yields a greater buffering capacity. Derivatives that result in zwitterionic buffers improve yield by allowing a greater range of stability.
    Type: Application
    Filed: October 6, 2010
    Publication date: June 9, 2011
    Inventor: Thomas Daly
  • Publication number: 20110092715
    Abstract: A process for reacting, in the presence of a particular calcium containing catalyst, an amine having an active hydrogen and one or more of a fatty acid ester or a fatty acid.
    Type: Application
    Filed: October 16, 2009
    Publication date: April 21, 2011
    Inventors: Upali Weerasooriya, John Boorem, Brian Hodle, Aaron Boorem, Peter Radford, Howard Stevenson, G. Gerald Barr
  • Patent number: 7030158
    Abstract: A group of new compounds, N-(all-trans-Retinoyl)-L-cysteic acid, N-(13-cis-Retinoyl)-L-cysteic acid, N-(all-trans-Retinoyl)-L-cysteinesulfinic acid, N-(13-cis-Retinoyl)-L-cysteinesulfinic acid, N-(all-trans-Retinoyl)-L-homocysteic acid, N-(13-cis-Retinoyl)-L-homocysteic acid, and sodium salts of these compounds, including sodium salts of their esters and amides, is shown to exhibit therapeutic effects per se, and which compounds in combination with cytotoxic compounds, such as docetaxel, paclitaxel, doxorubicin and mitoxantrone, exhibit a synergistic effect. These compounds make it possible to manufacture new formulations of poorly soluble pharmaceutical compounds, and the present invention discloses a process of manufacturing water-soluble formulations of such compounds, exemplified by docetaxel, and paclitaxel, exhibiting enhanced pharmacological activity, and formulations of water-soluble pharmaceuticals exemplified by doxorubicin and mitoxantrone, exhibiting improved therapeutic efficacy.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: April 18, 2006
    Assignee: Ardenia Investments Ltd.
    Inventors: Oleg Strelchenok, Julian Aleksov
  • Patent number: 6201122
    Abstract: Novel fluoroaliphatic radical-containing anionic sulfonamido compounds, methods of preparation and methods of use, including use as surfactants, are disclosed. Said compounds are conveniently prepared by the Michael addition of a fluoroaliphatic radical-containing compound to an ethylenically unsaturated compound.
    Type: Grant
    Filed: December 8, 1992
    Date of Patent: March 13, 2001
    Assignee: 3M Innovative Properties Company
    Inventor: Rudolf J. Dams
  • Patent number: 5869725
    Abstract: Derivatives of gamma-amino-alpha,beta-unsaturated sulfonic acids, a process for the preparation of the same and their utilization in the synthesis of pseudopeptides characterized by the presence of at least a sulfonamide type bond conjugated to a double bond are described.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: February 9, 1999
    Assignee: Pharmacia & UpJohn S.P.A.
    Inventors: Cesare Gennari, Donatella Potenza, Barbara Salom
  • Patent number: 5696071
    Abstract: Described are a tris(3-aminopropyl)amine derivative represented by the following formula (1): ##STR1## wherein R represents a C.sub.1-24 alkyl or alkenyl group which may have --OH, A represents a C.sub.1-6 alkylene or alkenylene group which may have --OH, --COOH or --SO.sub.3 H, Y.sup.1 represents --COOH, --SO.sub.3 H or --OSO.sub.3 H , Y.sup.2 represents --OH, --OSO.sub.3 H or --OCO--A--COOH and n stands for 0 or 1, or a salt or quaternized product thereof; and a detergent composition containing the same. The compound according to the present invention has low skin or hair irritation, has excellent foaming power and imparts favorable touch feeling to the skin or the like.
    Type: Grant
    Filed: January 7, 1997
    Date of Patent: December 9, 1997
    Assignee: Kao Corporation
    Inventors: Akiko Okutsu, Tomohito Kitsuki, Katsumi Kita
  • Patent number: 5688996
    Abstract: Novel compounds useful as sequestrants as well as builders for detergent compositions and methods for their preparation are disclosed.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: November 18, 1997
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Eddie Nelson Gutierrez, Shang-Ren Wu, Robert Charles Vermeer
  • Patent number: 5672739
    Abstract: The present invention comprises a novel composition of matter having the general formula: ##STR1## wherein R.sub.1 is H or an alkoxide of from 5 to about 20 carbon atoms;x is an integer of from about 8 to 22 when R.sub.1 =H and from about 2 to 5 when R.sub.1 is an alkoxide;R.sub.2 is selected independently from H, (CH.sub.2 CH.sub.2 O).sub.m H, and (CH.sub.2 CH(CH.sub.3)O).sub.m H;R.sub.3 is selected independently from H, (CH.sub.2 CH.sub.2 O).sub.n H, and (CH.sub.2 CH(CH.sub.3)O).sub.n H;m and n are integers from 1 to 50; and y and z are integers from 2 to 10.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: September 30, 1997
    Assignee: Exxon Research & Engineering Company
    Inventors: Ramesh Varadaraj, Max Leo Robbins, Cornelius Hendrick Brons
  • Patent number: 5547990
    Abstract: It has been found that certain combinations of substituted imidazoline-based amphoterics and quaternary ammonium compounds show markedly reduced irritation profile in addition to providing excellent cleaning detergency. Moreover, it has further been found that certain substituted imidazoline amphoteric surfactants in combination with didecyl dimethyl ammonium chloride (DIDAC) show unexpected synergistic irritation reduction compared to that observed when the quaternary is an ADBAC type. This allows the formulation of disinfectants and sanitizers with the favored antimicrobial agent while at the same time affording the optimum reduction in irritation potential.
    Type: Grant
    Filed: May 20, 1994
    Date of Patent: August 20, 1996
    Assignee: Lonza, Inc.
    Inventors: Larry Hall, Michael Y. Chiang, Judith M. Meyer
  • Patent number: 5472642
    Abstract: Diaminoalkyl di(sulfosuccinate) compounds useful as builders are disclosed together with a method for their preparation and detergent compositions for their use.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: December 5, 1995
    Assignee: Lever Brothers Company, Division of Conopco Inc.
    Inventors: Eddie N. Gutierrez, Shang-Ren Wu
  • Patent number: 5430052
    Abstract: The present invention relates to a pharmaceutical composition for use in preventing or treating heart diseases in a mammal, which comprises at least one aminoalkanesulfonic acid derivative of the formula (I): ##STR1## wherein X is hydrogen or an amino acid residue; Y is hydrogen, a phenyl group or an alkyl group, which may have a hydroxy, amino, carboxy, phenyl or hydroxyphenyl group; or X and Y are joined to form a trimethylene or hydroxytrimethylene group; and at least one of X and Y is other than hydrogen;or pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: December 15, 1993
    Date of Patent: July 4, 1995
    Assignee: Nippon Zoki Pharmaceutical Co., Ltd.
    Inventors: Kunihiko Higashiura, Masao Hattori, Kazuharu Ienaga
  • Patent number: 5336800
    Abstract: Oxamides useful as dye intermediates have the formula ##STR1## where R.sup.1 and R.sup.2 are independently of each other hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl,X is hydroxyl, nitro or a radical of the formula --NR.sup.3 R.sup.4, where R.sup.3 is hydrogen or C.sub.1 -C.sub.4 -alkanoyl and R.sup.4 is hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl,Z is C.sub.2 -C.sub.8 -alkylene, substituted or unsubstituted phenylene or substituted or unsubstituted naphthylene, or X--Z and R.sup.1 are, together with the nitrogen atom joining them together, the radical of the formula ##STR2## where R.sup.3 is as defined above,L is a bridge member andY is vinyl or a radical of the formula --C.sub.2 H.sub.4 --A, where A is hydroxyl or a group which is detachable under alkaline reaction conditions.
    Type: Grant
    Filed: January 4, 1993
    Date of Patent: August 9, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Siegel, Manfred Patsch, Knut Kessel
  • Patent number: 5262563
    Abstract: There is provided a process for producing sulfoalkyl-substituted hydroxylamines useful as preservatives to be added to a color developer for photosensitive materials. In this process, the sulfoalkyl-substituted hydroxylamines can be easily synthesized by reacting a specified alkylating agent, cyclic sulfonic ester, vinylsulfonic acid or sulfoalkyl-substituted acrylamide with a hydroxylamine.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: November 16, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kiyoshi Morimoto
  • Patent number: 5258141
    Abstract: New compounds are represented by Formula I: ##STR1## and salts and complexes thereof; wherein R is an alkyl group having at least one --SO.sub.3 H and at least one --OH; each R' is independently selected from hydrogen, an unsubstituted or inertly substituted alkyl group, an alkyl group substituted with a carbonyl group, with a carboxylic acid, salt or complexed carboxyl group, or an alkoxy group; R" is hydroxyalkyl and x+y+z=3 and are good chelants. The compounds are also biodegradable and are particularly useful in washing compositions, preferably containing detergents and in gas conditioning.
    Type: Grant
    Filed: January 26, 1993
    Date of Patent: November 2, 1993
    Assignee: The Dow Chemical Company
    Inventors: Druce K. Crump, David A. Wilson
  • Patent number: 5208369
    Abstract: New compounds are represented by Formula I: ##STR1## and salts and complexes thereof; wherein R is an alkyl group having at least one --SO.sub.3 H and at least one --OH; each R' is independently selected from hydrogen, an unsubstituted or inertly substituted alkyl group, an alkyl group substituted with a carbonyl group, with a carboxylic acid, salt or complexed carboxyl group, or an alkoxy group; R" is hydroxyalkyl and x+y+z=3 and are good chelants. The compounds are also biodegradable and are particularly useful in washing compositions, preferably containing detergents and in gas conditioning.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: May 4, 1993
    Assignee: The Dow Chemical Company
    Inventors: Druce K. Crump, David A. Wilson
  • Patent number: 5015763
    Abstract: An N-methyl-.alpha.-dialkylaminoacetohydroxamic acid represented by formula (I): ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, each represents a substituted or unsubstituted methyl group or a substituted or unsubstituted ethyl group.
    Type: Grant
    Filed: July 19, 1990
    Date of Patent: May 14, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Mitsunori Ono
  • Patent number: 4985591
    Abstract: Preparation of a semi-crystalline catalyst for curing coating compositions wherein an isocyanate-sulfonate or -phosphonate is made by a Michael addition followed by chain extension with an isocyanate.
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: January 15, 1991
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Jozef T. Huybrechts, Werner Zimmt