Patents by Inventor Keith M. Lingenfelter

Keith M. Lingenfelter 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).

  • Patent number: D287634
    Type: Grant
    Filed: June 12, 1984
    Date of Patent: January 6, 1987
    Assignee: Abbott Laboratories
    Inventors: David B. Carr, Keith M. Lingenfelter, James E. Mitchell, Larry W. Moore, Palmer L. Tag, Robert Case
  • Patent number: D287638
    Type: Grant
    Filed: June 8, 1984
    Date of Patent: January 6, 1987
    Assignee: Abbott Laboratories
    Inventors: Larry W. Moore, Keith M. Lingenfelter
  • Patent number: D287639
    Type: Grant
    Filed: June 8, 1984
    Date of Patent: January 6, 1987
    Assignee: Abbott Laboratories
    Inventors: Larry W. Moore, Keith M. Lingenfelter