Patents by Inventor Patrick D. Coyne

Patrick D. Coyne 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).

  • Skylight and/or roof opening guardrail assembly
    Patent number: 5502934
    Abstract: A skylight or roof opening protective device which comprises a pair of hinged protective frames which pivot outwardly from each other to define an "A" frame, when viewed at either end. Each frame is mounted on a base for temporary or permanent attachment to a skylight or the like.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: April 2, 1996
    Assignee: Lite-Guard Limited Liability Co.
    Inventors: Joseph R. Coyne, Patrick D. Coyne, Jack J. Wade