Patents by Inventor Chala V. Maripuri

Chala V. Maripuri 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).

  • Polyurethane process
    Patent number: 4255528
    Abstract: The use of catalytic amounts of tris(3-dimethylaminopropyl)amine promotes the formation of urethane linkages. Its unusual activity and properties make this compound very useful in the manufacture of rigid polyurethanes.
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: March 10, 1981
    Assignee: Abbott Laboratories
    Inventors: Daniel S. Raden, Chala V. Maripuri, Frank C. Becker