Patents by Inventor Judith A. Cornfield

Judith A. Cornfield 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).

  • Preservatives for wood and other cellulosic materials
    Patent number: 5634967
    Abstract: The instant invention concerns a wood preservative composition comprising a synergistically effective amount of (a) a cuprammonium compound and (b) tebuconazole to preserve wood.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: June 3, 1997
    Assignee: Hickson International PLC
    Inventors: Gareth Williams, Judith A. Cornfield, Janet Brown, Neil P. Ryan
  • Preservatives for wood and other cellulosic materials
    Patent number: 5527384
    Abstract: The instant invention concerns a wood preservative composition comprising a synergistically effective amount of (a) a cuprammonium compound and (b) tebuconazole to preserve wood.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: June 18, 1996
    Assignee: Hickson International, Plc
    Inventors: Gareth Williams, Judith A. Cornfield, Janet Brown, Neil P. Ryan
  • Preservatives for wood and other cellulosic materials
    Patent number: RE36798
    Abstract: The instant invention concerns a wood preservative composition comprising a synergistically effective amount of (a) a cuprammonium compound and (b) tebuconazole to preserve wood.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: August 1, 2000
    Assignee: Hickson International, Plc
    Inventors: Gareth Williams, Judith A. Cornfield, Janet Brown, Neil P. Ryan