Patents by Inventor David E. King, II

David E. King, II 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).

  • Refuse collector drainpipe insert
    Patent number: 5546614
    Abstract: A refuse-collecting drainpipe insert is a generally helical coil formed by a strip of rectangular cross section and having a bulge located axially generally centrally of the coil, and frustoconical end portions tapered oppositely from the central bulge of the coil, the strip at one end of the coil being formed as a hook and the strip at the other end of the coil being formed as a return bend.
    Type: Grant
    Filed: October 25, 1994
    Date of Patent: August 20, 1996
    Inventor: David E. King, II