Patents by Inventor John W. Kleber

John W. Kleber 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).

  • Growth promotant controlled release formulations and method of treatment
    Patent number: 4333919
    Abstract: Controlled release formulations comprised of a growth promoting agent admixed with a copolymer derived from lactic acid and glycolic acid and which is substantially free of polymerization catalyst are effective in the prolonged growth promotion of ruminants. A method for continuous dosing of active ingredients to a ruminant is provided.
    Type: Grant
    Filed: December 15, 1980
    Date of Patent: June 8, 1982
    Assignee: Eli Lilly and Company
    Inventors: John W. Kleber, Barbara E. Simpson