Patents by Inventor David M. Lapychak

David M. Lapychak 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: D284305
    Type: Grant
    Filed: December 16, 1983
    Date of Patent: June 17, 1986
    Assignee: Friedrich Air Conditioning & Refrigeration Co.
    Inventors: David M. Lapychak, James D. Alsup, Jr., William J. Saunders, Robert D. Bruffey, Jr.
  • Patent number: D310410
    Type: Grant
    Filed: September 21, 1988
    Date of Patent: September 4, 1990
    Assignee: Freidrich Air Conditioning & Refrigeration Co.
    Inventors: David M. Lapychak, James D. Alsup, Jr., James B. Watson, Edwin G. Gullet
  • Patent number: D310411
    Type: Grant
    Filed: September 21, 1988
    Date of Patent: September 4, 1990
    Assignee: Friedrich Air Conditioning & Refrigeration Co.
    Inventors: David M. Lapychak, James D. Alsup, Jr., James B. Watson, Edwin G. Gullet