Patents by Inventor Holger Frey

Holger Frey 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: 20200407479
    Abstract: The invention relates to a polymerization method in which alkyl glycidyl ethers and epoxides, such as ethylene oxide, polypropylene oxide, 1-ethoxyethyl glycidyl ether and gycidol, are copolymerized and block copolymers are synthesized. The inventive methods include an initiator, oligomer blocks of 1 to 40 alkyl glycidyl ether units of type (I), (II) or (III), and 80 to 1000 epoxy units of large polyether blocks, such as polyethylene oxide (PEO), polypropylene oxide (PPO), polyethoxyethylene glycidyl ether (PEEGE), linear and branched polyglycidol (PG, hbPG) or random copolymers of two, three or four different epoxide units, such as ethylene oxide (EO), propylene oxide (PO), 1-ethoxyethyl glycidyl ether (EEGE) and/or glycidol.
    Type: Application
    Filed: March 27, 2019
    Publication date: December 31, 2020
    Applicant: Johannes Gutenberg-Universität Mainz
    Inventors: Patrick VERKOYEN, Jan BLANKENBURG, Holger FREY
  • Publication number: 20200198966
    Abstract: A micromechanical device that includes a silicon substrate with an overlying oxide layer and with a micromechanical functional layer lying above same, which extend in parallel to a main extension plane, a cavity being formed at least in the micromechanical functional layer and in the oxide layer. An access channel is formed in the oxide layer and/or in the micromechanical functional layer which, starting from the cavity, extends in parallel to the main extension plane and in the process extends in a projection direction, as viewed perpendicularly to the main extension plane, all the way into an access area outside the cavity. A method for manufacturing a micromechanical device is also described.
    Type: Application
    Filed: December 17, 2019
    Publication date: June 25, 2020
    Inventors: Eckhard Graf, Holger Rumpf, Jens Frey, Jochen Reinmuth, Kurt-Ulrich Ritzau, Achim Breitling
  • Publication number: 20190359769
    Abstract: The invention relates to a pharmaceutical agent for the complexation of iron. The pharmaceutical agent includes an initiator group, a polymer and a terminal group R7, and has the structure: initiator group-polymer-R7. The pharmaceutical agent further includes one or more functional hydroxamic acid groups of the type —(C?O)NHOH or —(C?O)NCH3OH.
    Type: Application
    Filed: January 24, 2018
    Publication date: November 28, 2019
    Inventors: Holger FREY, Tobias JOHANN
  • Publication number: 20180105627
    Abstract: The present application is directed to a crosslinkable copolymer comprising styrene and 4-vinyl benzocyclobutene monomers and at least one alkoxysilane group, a method for generating an ultrathin copolymer film, which contains at least one crosslinked copolymer as defined herein, on a silicon-containing substrate, a composition or film comprising at least one copolymer as defined herein, as well as the use of this copolymer or composition containing it for electrical insulation and/or bonding of silicon-containing substrates.
    Type: Application
    Filed: December 15, 2017
    Publication date: April 19, 2018
    Inventors: Rainer Schoenfeld, Holger Frey, Daniel Leibig
  • Publication number: 20160272807
    Abstract: The synthesis of nanoparticles based on hyperbranched-linear-hyperbranched ABA triblock copolymers with hyperbranched polyglycerol (hbPG) as A-block and linear poly(oxymethylene) as B-block is described. The acid-degradable nanoparticles were formed in a facile process, combining a solvent evaporation process with the miniemulsion technique resulting in particles with a diameter in the range of 190 to 250 nm and a standard deviation of ˜30% determined with DLS and SEM. The nanoparticles were placed on a silicon wafer and sintered leading to films with a thickness in the ?m-range investigated via SEM. The surface properties of these films were investigated via static contact angle measurements at the liquid/vapor interface. The contact angle decreases from 67° for the polymer with two hydroxyl groups to 29° for the polymer with 16 hydroxyl groups, confirming the influence of the polymer structure and size of the hbPG block on the surface properties.
    Type: Application
    Filed: March 18, 2016
    Publication date: September 22, 2016
    Inventors: Michael Haubs, Klaus Kurz, Markus B. Bannwarth, Katharina Landfester, Frederik R. Wurm, Holger Frey, Rebecca Klein
  • Publication number: 20150247006
    Abstract: Synthesis of hyperbranched-linear-hyperbranched ABA triblock copolymers based on linear poly(oxy methylene) (POM) and hyperbranched poly(glycerol) (hbPG) blocks is described. The polymers having a polyacetal polyether structure were prepared from linear bishydroxy functional POM macroinititators, obtained by cationic ring-opening polymerization of trioxane and dioxane with formic acid as transfer agent and following hydrolysis of the formiate group. Partial deprotonation of the resulting hydroxyl groups permitted the hypergrafting by anionic ring-opening multibranching polymerization (ROMBP) of glycidol.
    Type: Application
    Filed: June 19, 2014
    Publication date: September 3, 2015
    Inventors: Rebecca Klein, Christoph Schüll, Michael Haubs, Klaus Kurz, Holger Frey
  • Publication number: 20130123530
    Abstract: The invention relates to glycerol-modified polyorganosiloxane compounds with high hydrophilicity and their use.
    Type: Application
    Filed: April 20, 2011
    Publication date: May 16, 2013
    Applicant: MOMENTIVE PERFORMANCE MATERIALS GMBH
    Inventors: Paul Boehm, Holger Frey, Tammo J. Menke
  • Patent number: 8399523
    Abstract: The present invention relates to a strategy for improving the permeability and solubility of pharmaceuticals, based on adding a chemically modified amino alkyl methacrylate copolymer E, wherein the chemical modification is the quaternization of a fraction of the existing amino alkyl groups.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: March 19, 2013
    Assignee: Evonik Roehm GmbH
    Inventors: Peter Langguth, Stefan Grube, Holger Frey, Boris Obermeier
  • Publication number: 20120294813
    Abstract: The invention relates to highly functional, aliphatic, branched polyethers produced from oxiranes, in particular ethylene oxide and glycidol or the sulfur- or nitrogen-containing analogues thereof. The branched polyethers are in particular suited as a matrix for pharmacological and cosmetic active agents.
    Type: Application
    Filed: December 10, 2010
    Publication date: November 22, 2012
    Inventors: Holger Frey, Daniel Wilms, Frederik Wurm
  • Patent number: 7875698
    Abstract: A novel polymeric initiator is disclosed comprising a dendritic polymer core with at least one initiating functional group as an end group. The dendritic polymeric core is preferably a hyperbranched polymer. The polymeric initiators are useful in radiation curable compositions such as varnishes, lacquers and printing inks and are especially useful in radiation curable inkjet inks.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: January 25, 2011
    Assignee: Agfa Graphics NV
    Inventors: Luc Vanmaele, Johan Loccufoer, Yu Chen, Holger Frey
  • Publication number: 20100286288
    Abstract: The present invention relates to a strategy for improving the permeability and solubility of pharmaceuticals, based on adding a chemically modified amino alkyl methacrylate copolymer E, wherein the chemical modification is the quaternization of a fraction of the existing amino alkyl groups.
    Type: Application
    Filed: December 12, 2008
    Publication date: November 11, 2010
    Applicant: Evonik Roehm GmbH
    Inventors: Peter Langguth, Stefan Grube, Holger Frey, Boris Obermeier
  • Patent number: 7795324
    Abstract: A novel polymeric initiator is disclosed comprising a dendritic polymer core with at least one initiating functional group as an end group. The dendritic polymeric core is preferably a hyperbranched polymer. The polymeric initiators are useful in radiation curable compositions such as varnishes, lacquers and printing inks and are especially useful in radiation curable inkjet inks.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: September 14, 2010
    Assignee: Agfa Graphics, N.V.
    Inventors: Johan Loccufier, Luc Vanmaele, Jaymes Van Luppen, Roland Claes, Yu Chen, Holger Frey
  • Patent number: 7538144
    Abstract: A novel photoreactive polymer is disclosed comprising a dendritic polymer core with at least one initiating functional group and at least one co-initiating functional group. The photoreactive polymers are useful in radiation curable compositions are varnishes, lacquers, printing inks and radiation curable ink-jet inks. The dendritic polymeric core is preferably a hyperbranched polymer.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: May 26, 2009
    Assignee: Agfa Graphics, N.V.
    Inventors: Luc Vanmaele, Johan Loccufoer, Yu Chen, Holger Frey
  • Patent number: 7507773
    Abstract: A radiation curable composition comprising a novel photoreactive polymer is disclosed comprising a dendritic polymer core with at least one initiating functional group and at least one co-initiating functional group. Suitable radiation curable compositions are varnishes, lacquers, printing inks and radiation curable ink-jet inks. The dendritic polymeric core is preferably a hyperbranched polymer.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: March 24, 2009
    Assignee: AGFA Graphics N.V.
    Inventors: Johan Loccufier, Luc Vanmaele, Roland Claes, Jaymes Van Luppen, Yu Chen, Holger Frey
  • Patent number: 7507785
    Abstract: A novel polymeric co-initiator is disclosed comprising a dendritic polymer core with at least one co-initiating functional group as an end group. The polymeric co-initiators are useful in radiation curable compositions such as varnishes, lacquers and printing inks and are especially useful in radiation curable inkjet inks. The dendritic polymeric core is preferably a hyperbranched polymer.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: March 24, 2009
    Assignee: Agfa Graphics N.V.
    Inventors: Luc Vanmaele, Johan Loccufoer, Yu Chen, Holger Frey
  • Publication number: 20080237907
    Abstract: A process for the preparation of a polymerizable dental composition comprising the steps of (a) preparing a liquid mixture comprising (i) 1 to 99% w/w of a hybrid monomer component containing at least one hybrid monomer compound having one hydrolysable siloxane group and at least one polymerizable organic moiety, and (ii) 99 to 1% w/w of a monomer component polymerizable with the polymerizable organic moiety of the hybrid monomer compounds; and (b) adding at least a stoichiometrically sufficient amount of water to the mixture to hydrolyse the hydrolysable siloxane group of the hybrid monomer compound and to form spherical polymerizable nanoparticles having an average particle size of from 1 to 100 nm dispersed in the monomer component, whereby the nanoparticles have a structure with Si—O—Si bonds and peripherally exposed polymerizable organic moieties.
    Type: Application
    Filed: June 4, 2008
    Publication date: October 2, 2008
    Inventors: Joachim E. Klee, Uwe Walz, Andreas Facher, Christoph Weber, Rolf Mulhaupt, Holger Frey, Ekkehard Muh
  • Patent number: 7045938
    Abstract: The invention relates to a reflector lamp and to a method for producing such a reflector lamp, especially a simplified method for fixing the lamp (2) in the reflector (1). The gasket (22) of the lamp base (21) is disposed in the cavity (13) of the reflector neck (12) in such a manner that the at least one power lead (71, 72) projects from the reflector neck (12) through a passage and the lamp base (21) is supported on the inner wall (13) of the reflector (1) perpendicular to the longitudinal axis (A). A fastening element (81, 82) is fastened on the power lead (71, 72) at an angle to the longitudinal axis (A) and rests against the outer wall of the reflector neck (12). The lamp (2) is thus fixated in the reflector (1) in the longitudinal direction (A) without play and without any additional spring elements.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: May 16, 2006
    Assignee: Patent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbH
    Inventors: Holger Frey, Georg Rosenbauer, Konrad Regler, Bernhard Ruhland, Thomas Sauerer, Anton Würmser
  • Publication number: 20060014850
    Abstract: A novel polymeric initiator is disclosed comprising a dendritic polymer core with at least one initiating functional group as an end group. The dendritic polymeric core is preferably a hyperbranched polymer. The polymeric initiators are useful in radiation curable compositions such as varnishes, lacquers and printing inks and are especially useful in radiation curable inkjet inks.
    Type: Application
    Filed: June 28, 2005
    Publication date: January 19, 2006
    Applicant: Agfa-Gevaert
    Inventors: Luc Vanmaele, Johan Loccufier, Yu Chen, Holger Frey
  • Publication number: 20060014849
    Abstract: A novel polymeric co-initiator is disclosed comprising a dendritic polymer core with at least one co-initiating functional group as an end group. The polymeric co-initiators are useful in radiation curable compositions such as varnishes, lacquers and printing inks and are especially useful in radiation curable inkjet inks. The dendritic polymeric core is preferably a hyperbranched polymer.
    Type: Application
    Filed: June 28, 2005
    Publication date: January 19, 2006
    Applicant: Agfa-Gevaert
    Inventors: Luc Vanmaele, Johan Loccufier, Yu Chen, Holger Frey
  • Publication number: 20060014853
    Abstract: A novel photoreactive polymer is disclosed comprising a dendritic polymer core with at least one initiating functional group and at least one co-initiating functional group. The photoreactive polymers are useful in radiation curable compositions are varnishes, lacquers,printing inks and radiation curable ink-jet inks. The dendritic polymeric core is preferably a hyperbranched polymer.
    Type: Application
    Filed: June 29, 2005
    Publication date: January 19, 2006
    Applicant: Agfa-Gevaert
    Inventors: Luc Vanmaele, Johan Loccufier, Yu Chen, Holger Frey