Patents by Inventor Richard G. Weiss

Richard G. Weiss has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200268889
    Abstract: (R)-12-hydroxystearic acid hydrazides as gelators and gels generated therefrom are provided. A series of (R)-12-hydroxystearic acid hydrazides produce gels that are self-standing and self-healing. The (R)-12-hydroxystearic acid hydrazides are capable of exhibiting gelling properties in a wide variety of solvents. The gels have demonstrated good potential for use in drug release.
    Type: Application
    Filed: December 28, 2016
    Publication date: August 27, 2020
    Applicant: Georgetown University
    Inventors: Jingjing LI, Richard G. Weiss
  • Publication number: 20190309132
    Abstract: Provided is a composition comprising (i) a polysiloxane comprising a plurality of pendant amines and (ii) an acid. Also provided is a composition comprising (i) a polysiloxane comprising a plurality of pendant acids and (ii) an amine. The compositions are useful inter alia for chemical or oil spill cleanup, drug delivery systems, transparent films, adhesives, binding agents, conductors, membranes, cross-linking agents, or opticoelectronic applications. Also provided are methods for making the compositions of the invention, as well as a battery and a composition for controlled release of a compound, each comprising a composition of the invention.
    Type: Application
    Filed: March 4, 2019
    Publication date: October 10, 2019
    Inventors: Richard G. Weiss, Ajaya M.V. Mallya, Yong He, Tao Yu
  • Patent number: 10221283
    Abstract: Provided is a composition comprising (i) a polysiloxane comprising a plurality of pendant amines and (ii) an acid. Also provided is a composition comprising (i) a polysiloxane comprising a plurality of pendant acids and (ii) an amine. The compositions are useful inter alia for chemical or oil spill cleanup, drug delivery systems, transparent films, adhesives, binding agents, conductors, membranes, cross-linking agents, or opticoelectronic applications. Also provided are methods for making the compositions of the invention, as well as a battery and a composition for controlled release of a compound, each comprising a composition of the invention.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: March 5, 2019
    Assignee: Georgetown University
    Inventors: Richard G. Weiss, Ajaya M. V. Mallya, Yong He, Tao Yu
  • Patent number: 9708521
    Abstract: Low molecular weight gelators, methods of making such gelators, organogels comprising such gelators and systems and methods of using such gelators for the containment and/or remediation of a release and/or spill of a crude oil, a petroleum product and/or a chemical is described. In exemplary systems and methods, gels and/or emulsions formed from the combination and/or contact of such gelators and at least one of a crude oil, a petroleum product and a chemical from a release and/or spill into the environment can be used to recover these oils or chemicals while allowing the gelators to be recovered and reused to clean up or contain additional crude oil, petroleum products or chemicals.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: July 18, 2017
    Assignee: GEORGETOWN UNIVERSITY
    Inventors: Richard G. Weiss, Ajaya Mallia Viswanatha Mallya
  • Patent number: 9433895
    Abstract: One aspect of the present invention relates to salts that are room-temperature ionic liquids (RTILs), methods of making them, and methods of using them in connection with temporary or permanent gas sequestration. Another aspect of the present invention relates to a class of solvents which can be transformed into RTILs by exposure to a gas, and methods of using them in connection with temporary or permanent gas sequestration.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: September 6, 2016
    Assignee: Georgetown University
    Inventors: Tao Yu, Richard G. Weiss, Taisuke Yamada, Mathew George
  • Publication number: 20150361224
    Abstract: Provided is a composition comprising (i) a polysiloxane comprising a plurality of pendant amines and (ii) an acid. Also provided is a composition comprising (i) a polysiloxane comprising a plurality of pendant acids and (ii) an amine. The compositions are useful inter alia for chemical or oil spill cleanup, drug delivery systems, transparent films, adhesives, binding agents, conductors, membranes, cross-linking agents, or opticoelectronic applications. Also provided are methods for making the compositions of the invention, as well as a battery and a composition for controlled release of a compound, each comprising a composition of the invention.
    Type: Application
    Filed: January 17, 2014
    Publication date: December 17, 2015
    Applicant: Georgetown University
    Inventors: Richard G. Weiss, Ajaya M.V. Mallya, Yong He, Tao Yu
  • Patent number: 9109150
    Abstract: Low molecular weight gelators, methods of making such gelators, organogels comprising such gelators and methods of using such organogels are described. In exemplary methods, the gelators can be used in a variety of applications including the delivery of pharmaceutical active pharmaceutical ingredients, in food, cosmetics and consumer products, and in containing the unexpected release of chemical that occur for example in spills.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: August 18, 2015
    Assignee: GEORGETOWN UNIVERSITY
    Inventors: Richard G. Weiss, Ajaya Mallia Viswanatha Mallya
  • Patent number: 8828173
    Abstract: Reversibly and irreversibly-linking amino-polysiloxanes, methods of making such amino-polysiloxanes, and systems and methods of using such amino-polysiloxanes for the containment and/or remediation of a release and/or spill of a crude oil, a petroleum product and/or a chemical is described. Gels and/or emulsions formed from the combination and/or contacting of such an amino-polysiloxane with these materials can be used to recover these oils or chemicals while allowing the amino-polysiloxane to be recovered and reused to clean up or contain additional materials. Such amino-polysiloxanes can be used as well for the selective uptake of one component of liquid mixtures when such mixtures contain more and less lipophilic components. Methods of making and using adhesive and sealants containing such amino-polysiloxanes are described.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: September 9, 2014
    Assignee: Georgetown University
    Inventors: Richard G Weiss, Tao Yu, Koji Wakuda
  • Publication number: 20140120013
    Abstract: One aspect of the present invention relates to salts that are room-temperature ionic liquids (RTILs), methods of making them, and methods of using them in connection with temporary or permanent gas sequestration. Another aspect of the present invention relates to a class of solvents which can be transformed into RTILs by exposure to a gas, and methods of using them in connection with temporary or permanent gas sequestration.
    Type: Application
    Filed: November 5, 2013
    Publication date: May 1, 2014
    Applicant: Georgetown University
    Inventors: Tao Yu, Richard G. Weiss, Taisuke Yamada, Mathew George
  • Patent number: 8574453
    Abstract: One aspect of the present invention relates to salts that are room-temperature ionic liquids (RTILs), methods of making them, and methods of using them in connection with temporary or permanent gas sequestration. Another aspect of the present invention relates to a class of solvents which can be transformed into RTILs by exposure to a gas, and methods of using them in connection with temporary or permanent gas sequestration.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: November 5, 2013
    Assignee: Georgetown University
    Inventors: Tao Yu, Richard G. Weiss, Taisuke Yamada, Mathew George
  • Publication number: 20130056140
    Abstract: Reversibly and irreversibly-linking amino-polysiloxanes, methods of making such amino-polysiloxanes, and systems and methods of using such amino-polysiloxanes for the containment and/or remediation of a release and/or spill of a crude oil, a petroleum product and/or a chemical is described. Gels and/or emulsions formed from the combination and/or contacting of such an amino-polysiloxane with these materials can be used to recover these oils or chemicals while allowing the amino-polysiloxane to be recovered and reused to clean up or contain additional materials. Such amino-polysiloxanes can be used as well for the selective uptake of one component of liquid mixtures when such mixtures contain more and less lipophilic components. Methods of making and using adhesive and sealants containing such amino-polysiloxanes are described.
    Type: Application
    Filed: March 22, 2011
    Publication date: March 7, 2013
    Applicant: Georgetown University
    Inventors: Richard G. Weiss, Tao Yu, Koji Wakuda
  • Publication number: 20120136074
    Abstract: Low molecular weight gelators, methods of making such gelators, organogels comprising such gelators and systems and methods of using such gelators for the containment and/or remediation of a release and/or spill of a crude oil, a petroleum product and/or a chemical is described. In exemplary systems and methods, gels and/or emulsions formed from the combination and/or contact of such gelators and at least one of a crude oil, a petroleum product and a chemical from a release and/or spill into the environment can be used to recover these oils or chemicals while allowing the gelators to be recovered and reused to clean up or contain additional crude oil, petroleum products or chemicals.
    Type: Application
    Filed: August 26, 2011
    Publication date: May 31, 2012
    Applicant: GEORGETOWN UNIVERSITY
    Inventors: Richard G. Weiss, Ajaya Mallia Viswanatha Mallya
  • Publication number: 20110251294
    Abstract: Low molecular weight gelators, methods of making such gelators, organogels comprising such gelators and methods of using such organogels are described. In exemplary methods, the gelators can be used in a variety of applications including the delivery of pharmaceutical active pharmaceutical ingredients, in food, cosmetics and consumer products, and in containing the unexpected release of chemical that occur for example in spills.
    Type: Application
    Filed: March 8, 2011
    Publication date: October 13, 2011
    Applicant: Georgetown University
    Inventors: Richard G. Weiss, Ajaya Mallia Viswanatha Mallya
  • Publication number: 20110076214
    Abstract: One aspect of the present invention relates to salts that are room-temperature ionic liquids (RTILs), methods of making them, and methods of using them in connection with temporary or permanent gas sequestration. Another aspect of the present invention relates to a class of solvents which can be transformed into RTILs by exposure to a gas, and methods of using them in connection with temporary or permanent gas sequestration.
    Type: Application
    Filed: January 28, 2008
    Publication date: March 31, 2011
    Applicant: Georgetown University Office of Technology commercialization
    Inventors: Tao Yu, Richard G. Weiss, Taisuke Yamada, Mathew George
  • Patent number: 5892116
    Abstract: Gelators gel a variety of nonpolar and polar liquids. Moreover, gelation of various monomers with subsequent polymerization of the gelled monomers forms organic zeolites and membrane materials. An ionic gelator includes salts of compounds of the formula (I):?R.sup.1 R.sup.2 R.sup.3 X-R.sup.4 !.+-.Y.-+. (I)where R.sup.1, R.sup.2 and R.sup.3 are the same or different hydrogen or organic groups including alkyl groups, alkenyl groups, alkynyl groups, aryl groups, arylalkyl groups, alkoxy groups, aryloxy groups; X is a Group IIIA or Group VA element; R.sup.4 is a steroidal group, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, an arylalkyl group, an alkoxy group or an aryloxy group; and Y is a Group IA or Group VIIA element or one-half of a Group IIA or VIA element, that is, a divalent counterion. The gelling agent composition may include a single isomer or mixtures of isomers of the formula (I). A non-ionic gelator also includes compounds of the formula:R.sup.1 R.sup.2 R.sup.3 X (II)where R.
    Type: Grant
    Filed: January 2, 1997
    Date of Patent: April 6, 1999
    Assignee: Georgetown University
    Inventors: Richard G. Weiss, Liangde Lu
  • Patent number: 4790961
    Abstract: Stable, thermally reversible gels of organic solvents and a gelling agent having the formulaR.sub.1 --(CH.sub.2).sub.n --CO.sub.2 --R.sub.2wherein R.sub.1 is an anthracene analogue or substituted anthracene analogue, n is zero or a whole number from 2 to 20, and R.sub.2 is cholesteryl and cholestanyl or a derivative of cholesteryl or cholestanyl, processes for producing same, and novel anthracene analogue cholesteryl and cholestanyl esters and derivatives.
    Type: Grant
    Filed: August 8, 1986
    Date of Patent: December 13, 1988
    Assignee: Georgetown University
    Inventors: Richard G. Weiss, Yih-chyuan Lin