Patents by Inventor William F. Olszewski

William F. Olszewski 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).

  • Load-carrying additives based on organo-phosphites and amine phosphates
    Patent number: 5681798
    Abstract: Lubricant and fuel compositions containing a small additive concentration of a novel organo-phosphorus composition based on phosphite-derived hydroxyl compounds and amine phosphates possess excellent antiwear properties coupled with good extreme pressure activities. Additional antioxidation, cleanliness, antifatigue, high temperature stabilizing, and friction modifying properties are expected. Both the phosphite-hydroxy moiety and the amine phosphate moiety are believed to provide the basis for the synergistic antiwear and EP property of these novel additives.
    Type: Grant
    Filed: August 1, 1996
    Date of Patent: October 28, 1997
    Inventors: Liehpao O. Farng, William F. Olszewski
  • Antirust/dispersant additive for lubricants
    Patent number: 5362411
    Abstract: Reaction products of hydrocarbylsuccinic anhydrides, polyamines and triazoles, as exemplified by XRT 2143A, have been found to be effective rust/corrosion inhibiting, thermal stabilizing and superior dispersant additives with excellent cleanliness feature for fuels and lubricants. Enhanced antioxidancy is also observed upon boration of these reaction products.
    Type: Grant
    Filed: May 10, 1993
    Date of Patent: November 8, 1994
    Assignee: Mobil Oil Corporation
    Inventors: Raymond Bergstra, Andreas Logothetis, William F. Olszewski, Shi-Ming Wu
  • Amine-coupled hindered phenols and phosphites as multifunctional antioxidant/antiwear additives
    Patent number: 5288418
    Abstract: Amine coupled condensation products of hindered phenols and phosphites have been found to be effective antioxidant/antiwear additives for lubricants.
    Type: Grant
    Filed: December 3, 1992
    Date of Patent: February 22, 1994
    Assignee: Mobil Oil Corporation
    Inventors: Liehpao O. Farng, Andrew G. Horodysky, William F. Olszewski
  • Complex alkoxy borates of alkylated phenols as lubricant stabilizers
    Patent number: 5252237
    Abstract: Alkoxy borates of alkylated phenols have been found to be effective cleanliness agents for lubricants and additives for improving the dropping point of greases.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: October 12, 1993
    Assignee: Mobil Oil Corporation
    Inventors: Harry J. Andress, Jr., Henry Ashjian, William F. Olszewski, Robert E. Ernhoffer
  • Mixed alcohol/dimercaptothiadiazole-derived hydroxy borates as antioxidant/antiwear multifunctional additives
    Patent number: 5137649
    Abstract: Mixed alcohol/dimercaptothiadiazole-derived hydroxy borates have been found to be effective antiwear/antioxidant multifunctional additives for lubricants.
    Type: Grant
    Filed: March 6, 1990
    Date of Patent: August 11, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Liehpao O. Farng, Andrew G. Horodysky, William F. Olszewski
  • Sulfurized olefin extreme pressure/antiwear additives and compositions thereof
    Patent number: 5135670
    Abstract: Reaction products of sulfur, olefins and sodium sulfide hydrates are improved extreme-pressure/antiwear additives for lubricants and liquid hydrocarbyl fuels.
    Type: Grant
    Filed: June 22, 1990
    Date of Patent: August 4, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Douglas E. Johnson, Andrew G. Horodysky, William F. Olszewski
  • Mixed phenol/dimercaptothiadiazole-derived hydroxythioether borates as antioxidant/antiwear multifunctional additives
    Patent number: 4906393
    Abstract: Mixed phenol/dimercaptothiadiazole-derived hydroxythioether borates have been found to be effective antiwear/antioxidant multifunctional additives for lubricants.
    Type: Grant
    Filed: December 30, 1988
    Date of Patent: March 6, 1990
    Assignee: Mobil Oil Corporation
    Inventors: Liehpao O. Farng, Andrew G. Horodysky, William F. Olszewski