Patents by Inventor John P. Droske

John P. Droske 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).

  • Reversible crosslinked polymers
    Patent number: 11390710
    Abstract: A reversibly crosslinked polymer and methods for producing and using the obtained polymer are disclosed. In particular, reversibly crosslinked polymers of the invention comprise polyesters formed by the reaction of mercaptosuccinic acid and a diol to form a monomeric unit that includes thiol groups as crosslinking moieties. Oxidation of the thiol groups affords crosslinked polymer comprising a disulfide linkage that, upon reduction of the disulfide linkage, provides a non-crosslinked polymer. In some embodiments, polymers of the invention are degradable and are biocompatible.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: July 19, 2022
    Assignee: WiSys Technology Foundation, Inc.
    Inventor: John P. Droske
  • Chemically Uniform Dilatant Materials
    Publication number: 20210284794
    Abstract: A series of materials that exhibit a range of dilatant properties have been synthesized. The materials show good transparency and are chemically uniform, that is, they consist of a single chemical component. The dilatant properties likely are due to the presence of both aggregated and non-aggregated forms of the oligomers. The degree of dilatancy can be modified by adjusting the monomer composition. The range of dilatant properties, good transparency, and single chemical component nature of the dilatant samples make these materials of particular interest.
    Type: Application
    Filed: May 7, 2018
    Publication date: September 16, 2021
    Inventor: John P. Droske
  • Bis-(hydroxyalkyl)mercaptosuccinates
    Patent number: 9187596
    Abstract: The present invention provides bis(hydroxyalkyl)mercaptosuccinates of the formula: and derivatives thereof, where X1, X2, Z1, Z2, Y1, Y2, Ra, Rb, R1, and R2 are those defined herein. The present invention also provides methods for producing and using the same.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: November 17, 2015
    Inventors: John P. Droske, Mark J. Juetten
  • REVERSIBLE CROSSLINKED POLYMERS
    Publication number: 20130289233
    Abstract: The present invention provides reversibly crosslinked polymers and methods for producing and using the same. In particular, reversibly crosslinked polymers of the invention comprise polyesters comprising thiol groups as crosslinking moieties. Oxidation of thiol groups affords crosslinked polymer comprising a disulfide linkage and reduction of the disulfide linkage provides non-crosslinked polymer. In some embodiments, polymers of the invention are degradable and are biocompatible.
    Type: Application
    Filed: April 29, 2013
    Publication date: October 31, 2013
    Applicant: WYSIS TECHNOLOGY FOUNDATION, INC.
    Inventor: John P. Droske
  • BIS-(HYDROXYALKYL)MERCAPTOSUCCINATES
    Publication number: 20110269903
    Abstract: The present invention provides bis(hydroxyalkyl)mercaptosuccinates of the formula: and derivatives thereof, where X1, X2, Z1, Z2, Y1, Y2, Ra, Rb, R1, and R2 are those defined herein. The present invention also provides methods for producing and using the same.
    Type: Application
    Filed: April 29, 2011
    Publication date: November 3, 2011
    Applicant: WYSIS TECHNOLOGY FOUNDATION, INC.
    Inventors: John P. Droske, Mark J. Juetten