WJ

William R. Ruhe, Jr.

Chevron: 52 patents #45 of 4,788Top 1%
📍 Travis Field, CA: #1 of 2 inventorsTop 50%
🗺 California: #8,171 of 386,348 inventorsTop 3%
Overall (All Time): #55,704 of 4,157,543Top 2%
49
Patents All Time

Issued Patents All Time

Showing 1–25 of 49 patents

Patent #TitleCo-InventorsDate
12391898 Friction modifier system Taiki HATTORI, Koichi Kubo 2025-08-19
12331260 Ashless additive composition Masami Fuchi, Seyedeh Mahboobeh Hosseini 2025-06-17
10815446 Dispersants, method of making, and using same Georgeta Masson, Abran Costales, Kirk A. Nass, John Robert Miller, Young A. Chang 2020-10-27
9994786 Polyester dispersants, synthesis and use thereof 2018-06-12
9957461 Polyester dispersants, synthesis and use thereof 2018-05-01
9487731 Functionalized olefin copolymers with monoamine terminated polyether and lubricating oil compositions 2016-11-08
9487730 Functionalized olefin copolymers with monoamine terminated polyether and lubricating oil compositions 2016-11-08
9347015 Functionalized olefin copolymers with monoamine terminated polyether lubricating oil compositions Pritesh Patel 2016-05-24
8455568 Lubricating oil additive composition and method of making the same 2013-06-04
8183189 Preparation of a sulfurized molybdenum amide complex and additive compositions having low residual active sulfur Qunlai Chen, Man Hon Tsang, Gaurav Bhalla 2012-05-22
8076275 Reduced color molybdenum-containing composition and a method of making same Anatoli Onopchenko 2011-12-13
8067347 Lubricating oil additive composition and method of making the same Casey D. Stokes 2011-11-29
7928044 Lubricating oil additive composition and method of making the same Casey D. Stokes 2011-04-19
7858566 Lubricating oil additive composition and method of making the same Casey D. Stokes 2010-12-28
7820604 Lubricating oil additive composition and method of making the same Casey D. Stokes 2010-10-26
7820605 Lubricating oil additive composition and method of making the same Casey D. Stokes 2010-10-26
7816309 Lubricating oil additive composition and method of making the same Casey D. Stokes 2010-10-19
7745541 Lubricating oil additive composition and method of making the same Casey D. Stokes 2010-06-29
7745542 Lubricating oil additive composition and method of making the same Casey D. Stokes, James A. Gray 2010-06-29
7091306 Process for preparing polyalkenylsuccinimides Mohammed Heddadj, Gilles P. Sinquin 2006-08-15
6962896 Reduced color molybdenum-containing composition and a method of making same Anatoli Onopchenko 2005-11-08
6958409 Process for reduced crude sediment in metal salts of hydrocarbyl dithiophosphoric acid 2005-10-25
6906011 Polymeric dispersants prepared from copolymers of low molecular weight polyisobutene and unsaturated acidic reagent James J. Harrison, Kenneth D. Nelson 2005-06-14
6617396 Process for making polyalkylene/maleic anhydride copolymer James J. Harrison 2003-09-09
6451920 Process for making polyalkylene/maleic anhydride copolymer James J. Harrison 2002-09-17