Patents Assigned to Hickson International PLc
  • Preservatives for wood and other cellulosic materials
    Patent number: 5916356
    Abstract: This invention relates to preservative compositions which comprise a biocidal metal compound and an fungicidal compound containing a triazole group. Methods of treating wood with the composition are also described.
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: June 29, 1999
    Assignee: Hickson International PLC
    Inventors: Gareth Williams, Judith Ann Cornfield, Janet Brown, Neil Patrick Ryan
  • 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
  • Compositions and method of treatment of timber
    Patent number: 5129946
    Abstract: A composition for treating timber comprising a boron-containing preservative, a thickening agent and, optionally, a fluorosurfactant. The thickening agent can be at least one polysaccharide, such as xanthan gum, or two or more polyacrylamides. The boron-containing preservative can be in the form of a colloidal micro-crystalline suspension of a boron-containing salt. The composition allows the boron-containing preservative to be more readily absorbed by, and diffused into, the timber.
    Type: Grant
    Filed: February 7, 1991
    Date of Patent: July 14, 1992
    Assignee: Hickson International PLc
    Inventor: David L. Evans
  • 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