Patents by Inventor David W. Henson

David W. Henson 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).

  • Portable, mailbox-mounted, potted plant holder
    Patent number: 6032808
    Abstract: An open framework is supported on a mailbox and, in turn, supports multiple flowerpots whose plants decorate the mailbox. The framework and the flowerpots are removable as a unit. The flowerpots are individually removable. The framework includes a plurality of rings for supportably engaging the flowerpots.
    Type: Grant
    Filed: December 24, 1998
    Date of Patent: March 7, 2000
    Inventor: David W. Henson
  • Piperazino-anilido compounds
    Patent number: 3953448
    Abstract: Novel 1,4-disubstituted piperazine compounds and pharmaceutical compositions incorporating such compounds in conjunction with orally, parenterally or rectally administrable pharmaceutically acceptable carriers are disclosed. These compounds have coronary vasodilating properties. Also disclosed are processes for preparing these compounds, and novel intermediate compounds used in such processes.
    Type: Grant
    Filed: December 7, 1972
    Date of Patent: April 27, 1976
    Assignee: Delmar Chemicals Limited
    Inventors: Ctirad Podesva, William T. Scott, David W. Henson
  • Mattress pad
    Patent number: D414065
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: September 21, 1999
    Inventor: David W. Henson
  • Mailbox-mounted holder for potted plants
    Patent number: D417798
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: December 21, 1999
    Inventor: David W. Henson
  • Mattress pad
    Patent number: D421358
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: March 7, 2000
    Inventor: David W. Henson