Patents by Inventor Meidong Lang

Meidong Lang 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).

  • Systems and methods for the generation of crystalline polymorphs
    Patent number: 7429238
    Abstract: The present invention relates to systems and methods for generating polymorphs of compounds. In particular, the present invention provides high throughput systems and methods for generating and identifying new crystalline polymorphs that find use as improved drugs, pigments, explosives, nonlinear optical crystals, solid-state reactive compounds, and other polymorphic materials.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: September 30, 2008
    Assignee: The Regents of the University of Michigan
    Inventors: Adam J. Matzger, Meidong Lang, Kibum Kim
  • Biodegradable copolymers linked to segment with a plurality of functional groups
    Patent number: 6830747
    Abstract: Biocompatible biodegradable polymer or copolymer is capped at one end and has free hydroxyl at the other end. The free hydroxyl can be reacted to link a plurality of functional groups some or each of which can be reacted to attach directly or via a spacer molecule a moiety containing an aminoxyl-containing radical or to a moiety comprising other drug molecule residue or a moiety comprising other biologically active agent residue.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: December 14, 2004
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Meidong Lang, Chih-Chang Chu
  • Biodegradable polyhydric alcohol esters
    Patent number: 6592895
    Abstract: Precursor polyhydric alcohol esters where acyl moieties originate from aliphatic homopolymer or copolymer polyesters and contain free hydroxyl at their terminal ends, are reacted to provide 2-carboxy ethenyl groups. The resulting products can be used in formation of hydrogels for drug delivery or can be reacted to attach aminoxyl radical or drug molecule residue or other biologically active agent for delivery of these, for example, from vascular stents.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: July 15, 2003
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Meidong Lang, Chih-Chang Chu
  • Systems and methods for the generation of crystalline polymorphs
    Publication number: 20030113802
    Abstract: The present invention relates to systems and methods for generating polymorphs of compounds. In particular, the present invention provides high throughput systems and methods for generating and identifying new crystalline polymorphs that find use as improved drugs, pigments, explosives, nonlinear optical crystals, solid-state reactive compounds, and other polymorphic materials.
    Type: Application
    Filed: October 11, 2002
    Publication date: June 19, 2003
    Applicant: The Regents of the University of Michigan
    Inventors: Adam J. Matzger, Meidong Lang, Kibum Kim
  • Biodegradable polyhydric alcohol esters
    Publication number: 20030109647
    Abstract: Precursor polyhydric alcohol esters where acyl moieties originate from aliphatic homopolymer or copolymer polyesters and contain free hydroxyl at their terminal ends, are reacted to provide 2-carboxy ethenyl groups. The resulting products can be used in formation of hydrogels for drug delivery or can be reacted to attach aminoxyl radical or drug molecule residue or other biologically active agent for delivery of these, for example, from vascular stents.
    Type: Application
    Filed: July 15, 2002
    Publication date: June 12, 2003
    Inventors: Meidong Lang, Chih-Chang Chu
  • Biodegradable copolymers linked to segment with a plurality of functional groups
    Publication number: 20030027940
    Abstract: Biocompatible biodegradable polymer or copolymer is capped at one end and has free hydroxyl at the other end. The free hydroxyl can be reacted to link a plurality of functional groups some or each of which can be reacted to attach directly or via a spacer molecule a moiety containing an aminoxyl-containing radical or to a moiety comprising other drug molecule residue or a moiety comprising other biologically active agent residue.
    Type: Application
    Filed: March 20, 2002
    Publication date: February 6, 2003
    Inventors: Meidong Lang, Chih-Chang Chu