Patents by Inventor Richard L. Pilling

Richard L. Pilling 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).

  • Preservation of wood chips
    Patent number: 5342629
    Abstract: Cellulosic particles, for example wood particles, stored in a pile are preserved by contacting the particles with a thiocarbonate composition.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: August 30, 1994
    Assignee: Union Oil Company of California
    Inventors: Roger A. Brown, Richard L. Pilling, Donald C. Young
  • Stabilized solid thiocarbonate compositions and methods for making same
    Patent number: 5240709
    Abstract: Encapsulating particles of solid thiocarbonate salts, esters and complexes with air- and water-impermiable coatings produces compositions having long-term stability.
    Type: Grant
    Filed: August 6, 1991
    Date of Patent: August 31, 1993
    Assignee: Union Oil Company of California
    Inventors: Richard L. Pilling, Donald C. Young
  • Stabilized solid thiocarbonate compositions and methods for making same
    Patent number: 5039327
    Abstract: Encapsulating particles of solid thiocarbonate salts, esters and complexes with air- and water-impermiable coatings produces compositions having long-term stability.
    Type: Grant
    Filed: December 28, 1988
    Date of Patent: August 13, 1991
    Assignee: Union Oil Company of California
    Inventors: Richard L. Pilling, Donald C. Young
  • Lubricating compositions
    Patent number: 4909951
    Abstract: Additives comprising an adduct of a calcium salt of a thiocarbonic acid and calcium hydroxide are useful in lubricants to enhance both the extreme pressure/anti-wear and anti-oxidation capabilities thereof. The lubricants are preferably oils of lubricating viscosity, which may be thickened to a grease-like consistency with one or more oil thickeners and contain from about 0.1 to about 20 weight percent of said adduct.
    Type: Grant
    Filed: February 24, 1989
    Date of Patent: March 20, 1990
    Assignee: Union Oil Company of California
    Inventors: Leah T. Mendelson, Richard L. Pilling
  • Extreme pressure lubricating compositions and method of using same
    Patent number: 4908142
    Abstract: Additives containing a salt or complex of trithiocarbonic acid are useful in lubricants to enhance the extreme pressure/anti-wear and anti-oxidation capabilities thereof. The lubricants are preferably oils of lubricating viscosity, which may be thickened to a grease-like consistency with one or more oil thickeners, and contains from about 0.1 to about 20 weight percent of said additives.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: March 13, 1990
    Assignee: Union Oil Company of California
    Inventors: Josefina M. Dumdum, Leah T. Mendelson, Richard L. Pilling
  • Lubricating compositions and method of using same
    Patent number: 4908143
    Abstract: Additives comprising a salt or complex of tetrathiocarbonic acid are useful in lubricants to enhance both the extreme pressure/anti-wear and anti-oxidant capabilities thereof. The lubricants preferably are oils of lubricating viscosity, which may be thickened to grease-like consistency with one or more oil thickeners, and contain from about 0.1 to about 20 weight percent of said additives.
    Type: Grant
    Filed: October 4, 1988
    Date of Patent: March 13, 1990
    Assignee: Union Oil Company of California
    Inventors: Josefina M. Dumdum, Leah T. Mendelson, Richard L. Pilling