Patents by Inventor Joseph M. Pudlak

Joseph M. Pudlak 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).

  • Patent number: 7981270
    Abstract: The present invention relates to an extra light hydrocarbon liquid derived from highly paraffinic wax. This extra light hydrocarbon liquid is suitable for use as a lubricant additive diluent oil in oil soluble additive concentrates. This extra light hydrocarbon liquid derived from highly paraffinic wax has a viscosity of between about 1.0 and 3.5 cSt at 100° C. and a Noack volatility of less than 50 weight % and comprises greater than 3 weight % molecules with cycloparaffinic functionality and less than 0.30 weight percent aromatics. The extra light hydrocarbon liquid makes an excellent lubricant additive diluent oil because it has low volatility, low viscosity, good additive solubility, and excellent solubility in lubricant base oil stocks. The present invention also relates to finished lubricants comprising the oil soluble additive concentrates made with the extra light hydrocarbon liquid and finished lubricants comprising the oil soluble additive concentrates.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: July 19, 2011
    Assignee: Chevron U.S.A. Inc.
    Inventors: John M. Rosenbaum, Brent K. Lok, Joseph M. Pudlak
  • Patent number: 7655605
    Abstract: The present invention relates to an extra light hydrocarbon liquid derived from highly paraffinic wax. This extra light hydrocarbon liquid is suitable for use as a lubricant additive diluent oil in oil soluble additive concentrates. This extra light hydrocarbon liquid derived from highly paraffinic wax has a viscosity of between about 1.0 and 3.5 cSt at 100° C. and a Noack volatility of less than 50 weight % and comprises greater than 3 weight % molecules with cycloparaffinic functionality and less than 0.30 weight percent aromatics. The extra light hydrocarbon liquid makes an excellent lubricant additive diluent oil because it has low volatility, low viscosity, good additive solubility, and excellent solubility in lubricant base oil stocks. The present invention also relates to finished lubricants comprising the oil soluble additive concentrates made with the extra light hydrocarbon liquid and finished lubricants comprising the oil soluble additive concentrates.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: February 2, 2010
    Assignee: Chevron U.S.A. Inc.
    Inventors: John M. Rosenbaum, Brent K. Lok, Joseph M. Pudlak
  • Patent number: 7572361
    Abstract: Lubricant blends and finished gear oils comprising a lubricant base oil fraction derived from highly paraffinic wax, a petroleum derived base oil, and a pour point depressant are provided. The lubricant base oil fraction derived from highly paraffinic wax comprises less than 0.30 weight percent aromatics, greater than 5 weight percent molecules with cycloparaffinic functionality, and a ratio of weight percent of molecules with monocycloparaffinic functionality to weight percent of molecules with multicycloparaffinic functionality greater than 15. The petroleum derived base oils comprises greater than 90 weight percent saturates and less than 300 ppm sulfur and is preferably selected from the group consisting of a Group II base oil, a Group III base oil, and mixtures thereof. These lubricant blends have surprising low Brookfield viscosities at ?40° C.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: August 11, 2009
    Assignee: Chevron U.S.A. Inc.
    Inventors: John M. Rosenbaum, Stephen J. Miller, Joseph M. Pudlak
  • Patent number: 7510674
    Abstract: Dielectric fluids comprising oil fractions derived from highly paraffinic wax are provided. Further provided are processes for making these dielectric fluids comprising oil fractions derived from highly paraffinic wax. The dielectric fluids are useful as insulating and cooling mediums in new and existing power and distribution electrical apparatus, such as transformers, regulators, circuit breakers, switchgear, underground electrical cables, and attendant equipment.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: March 31, 2009
    Assignee: Chevron U.S.A. Inc.
    Inventors: John M. Rosenbaum, Nadine L. Yenni, Joseph M. Pudlak
  • Patent number: 7476645
    Abstract: Blended lubricant base oils and blended finished lubricants comprising ?70 weight percent Fischer-Tropsch derived lubricant base oils comprising ?6 weight % molecules with monocycloparaffinic functionality and less than 0.05 weight % molecules with aromatic functionality; at least one polyalphaolefin lubricant base oil with a kinematic viscosity at 100° C. greater than about 30 cSt and less than 150 cSt are provided. These blended lubricant base oils and blended finished lubricants exhibit superior friction and wear properties, in addition to other highly desired properties. Also provided are processes for making these blended lubricant base oils and blended finished lubricants.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: January 13, 2009
    Assignee: Chevron U.S.A. Inc.
    Inventors: John M. Rosenbaum, Brent K. Lok, Joseph M. Pudlak, James N. Ziemer, Robert J. Farina
  • Patent number: 7473345
    Abstract: Lubricant blends and finished gear oils comprising a lubricant base oil fraction derived from highly paraffinic wax, a petroleum derived base oil, and a pour point depressant are provided. The lubricant base oil fraction derived from highly paraffinic wax comprises less than 0.30 weight percent aromatics, greater than 5 weight percent molecules with cycloparaffinic functionality, and a ratio of weight percent of molecules with monocycloparaffinic functionality to weight percent of molecules with multicycloparaffinic functionality greater than 15. The petroleum derived base oils comprises greater than 90 weight percent saturates and less than 300 ppm sulfur and is preferably selected from the group consisting of a Group II base oil, a Group III base oil, and mixtures thereof. These lubricant blends have surprising low Brookfield viscosities at ?40° C.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: January 6, 2009
    Assignee: Chevron U.S.A. Inc.
    Inventors: John M. Rosenbaum, Stephen J. Miller, Joseph M. Pudlak
  • Patent number: 7384536
    Abstract: Lubricant blends and finished gear oils comprising a Fischer-Tropsch derived lubricant base oil fraction, a petroleum derived base oil, and a pour point depressant are provided. The Fischer-Tropsch derived lubricant base oil fraction comprises less than 0.30 weight percent aromatics, greater than 5 weight percent molecules with cycloparaffinic functionality, and a ratio of weight percent of molecules with monocycloparaffinic functionality to weight percent of molecules with multicycloparaffinic functionality greater than 15. The petroleum derived base oils comprises greater than 90 weight percent saturates and less than 300 ppm sulfur and is preferably selected from the group consisting of a Group II base oil, a Group III base oil, and mixtures thereof. These lubricant blends have surprising low Brookfield viscosities at ?40° C.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: June 10, 2008
    Assignee: Chevron U.S.A. Inc.
    Inventors: John M. Rosenbaum, Stephen J. Miller, Joseph M. Pudlak
  • Patent number: 7273834
    Abstract: Lubricant blends and finished gear oils comprising a Fischer-Tropsch derived lubricant base oil fraction, a petroleum derived base oil, and a pour point depressant are provided. The Fischer-Tropsch derived lubricant base oil fraction comprises less than 0.30 weight percent aromatics, greater than 5 weight percent molecules with cycloparaffinic functionality, and a ratio of weight percent of molecules with monocycloparaffinic functionality to weight percent of molecules with multicycloparaffnic functionality greater than 15. The petroleum derived base oils comprises greater than 90 weight percent saturates and less than 300 ppm sulfur and is preferably selected from the group consisting of a Group II base oil, a Group III base oil, and mixtures thereof. These lubricant blends have surprising low Brookfield viscosities at ?40° C.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: September 25, 2007
    Assignee: Chevron U.S.A. Inc.
    Inventors: John M. Rosenbaum, Stephen J. Miller, Joseph M. Pudlak
  • Patent number: 7252753
    Abstract: Dielectric fluids comprising oil fractions derived from highly paraffinic wax are provided. Further provided are processes for making these dielectric fluids comprising oil fractions derived from highly paraffinic wax. The dielectric fluids are useful as insulating and cooling mediums in new and existing power and distribution electrical apparatus, such as transformers, regulators, circuit breakers, switchgear, underground electrical cables, and attendant equipment.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: August 7, 2007
    Assignee: Chevron U.S.A. Inc.
    Inventors: John M. Rosenbaum, Nadine L. Yenni, Joseph M. Pudlak
  • Patent number: 6187725
    Abstract: The invention includes a process of making a lubricating composition including: contacting a heavy mineral oil feed in a hydrocracking zone with a hydrocracking catalyst at hydrocracking conditions, whereby at least a portion of the heavy mineral oil feed is cracked; recovering at least one gasoline-range fraction and one bottoms fraction from the hydrocracking zone; passing a first portion of the bottoms fraction including not more than about 67 wt. % of the bottoms fraction to a dewaxing zone; and passing a second portion of the bottoms fraction including at least about 33 wt. % of the bottoms fraction back to the fuels hydrocracker for additional processing; and where the bottoms fraction has a viscosity at 100° C. of less than about 4.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: February 13, 2001
    Assignee: Chevron U.S.A. Inc.
    Inventors: David C. Kramer, John A. Zakarian, Jay M. Peterson, Russell R. Krug, Jaime Lopez, Stephen K. Lee, Mark L. Sztenderowicz, Joseph M. Pudlak
  • Patent number: 6110879
    Abstract: The present invention provides for a lubricating composition including: a hydrocracker-derived, highly naphthenic, low viscosity index mineral oil; from about 2 wt. % to about 14 wt. % of at least one polymethacrylate polymer; and from about 2 wt. % to about 14 wt. % of a performance additive package. The hydrocracker-derived, highly naphthenic, low viscosity index mineral oil is prepared by: (1) passing a first bottoms portion including not more than about 67 wt. % of a fuels hydrocracker bottoms recycle stream to a dewaxing zone; and (2) passing a second bottoms portion including at least about 33 wt. % of the recycle stream back to the fuels hydrocracker for additional processing; and where the recycle stream has a viscosity at 100.degree. C. of less than about 4.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: August 29, 2000
    Assignee: Chevron U.S.A. Inc.
    Inventors: David C. Kramer, John A. Zakarian, Jay M. Peterson, Russell R. Krug, Jaime Lopez, Stephen K. Lee, Mark L. Sztenderowicz, Joseph M. Pudlak