Patents by Inventor Guanglou Cheng

Guanglou Cheng 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).

  • Degradable polymides
    Patent number: 7427654
    Abstract: Degradable polyimides are prepared in high yield by polymerizing a monomer containing at least two anhydride groups, and a monomer containing at least two primary amine groups and at least one acidic group, in bulk or in a solvent. The polyimides are very strong in terms of their mechanical properties, yet degradable under standard physiological conditions.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: September 23, 2008
    Assignee: University of Puerto Rico
    Inventors: Guanglou Cheng, Maria Aponte, Carlos A. Ramírez