Patents by Inventor Narendar P. Luthra

Narendar P. Luthra 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 articles and methods of using such articles as degradable bait
    Patent number: 5266323
    Abstract: A degradable article comprising a polyurethane polymer gel or foam whose polymer structure contains hydrolytically unstable ester linkages and various additives. The article can be constructed so that some of the additives are released from the article at a sustained rate. In a preferred embodiment the additives are sensory stimulants for marine or aquatic organisms and the article is used as bait for those organisms.
    Type: Grant
    Filed: May 24, 1991
    Date of Patent: November 30, 1993
    Assignee: Hampshire Chemical Corp.
    Inventors: James L. Guthrie, Narendar P. Luthra, Clifton L. Kehr, Darwin S. Bull