Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Thomas V. Liston — 26 Patents

Chevron: 26 patents #130 of 4,788Top 3%
San Rafael, CA: #35 of 869 inventorsTop 5%
California: #20,975 of 386,348 inventorsTop 6%
Overall (All Time): #150,017 of 4,157,543Top 4%
26 Patents All Time
Thomas V. Liston has been granted 26 US patents while listed as an inventor at Chevron. The first was granted in 1980 and the most recent in February 1994. Thomas V. Liston ranks #150,017 of 4,157,543 US inventors in our database (top 3.6%). Patent records list Thomas V. Liston in San Rafael, CA, US.

Patents per Year

Patents granted per year, 1980 to 1994Bar chart with a peak of 5 patents in 1992.peak 51980: 2 patents19801982: 1 patents1983: 1 patents19831984: 3 patents1985: 1 patents19851986: 3 patents1987: 2 patents19871988: 2 patents1990: 2 patents19901991: 2 patents1992: 5 patents19921993: 1 patents1994: 1 patents1994

Issued Patents All Time

Showing 1–25 of 26 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5284594 Dialkylamine complexes of borated alkyl catechols and lubricating oil compositions containing the same Vernon R. Small, Jr., Anatoli Onopchenko 1994-02-08 $133,902,000
5202039 Trialkylamine complexes of certain borated alkyl catechols and lubricating oil compositions containing the same Vernon R. Small, Jr., Anatoli Onopchenko 1993-04-13 $38,618,000
5160650 Monoalkylamine complexes of borated higher carbon number alkyl catechols and lubricating oil compositions containing the same Vernon R. Small, Jr., Anatoli Onopchenko 1992-11-03 $19,997,000
5160651 Trialkylamine complexes of borated higher carbon number alkyl catechols and lubricating oil compositions containing the same Vernon R. Small, Jr., Anatoli Onopchenko 1992-11-03 $19,997,000
5160652 Dialkylamine complexes of borated higher carbon number alkyl catechols and lubricating oil compositions containing the same Vernon R. Small, Jr., Anatoli Onopchenko 1992-11-03 $19,997,000
5141660 Monoalkylamine complexes of borated alkyl catechols and lubricating oil compositions containing the same Vernon R. Small, Jr., Anatoli Onopchenko 1992-08-25 $27,230,000
5102569 Method of preparing borated alkyl aromatic polyols Anatoli Onopchenko 1992-04-07 $23,003,000
5061390 Diethylamine complexes of borated alkyl catechols and lubricating oil compositions containing the same Vernon R. Small, Jr., Anatoli Onopchenko 1991-10-29 $26,198,000
5024773 Methods for preparing, group II metal overbased sulfurized alkylphenols 1991-06-18 $62,004,000
4975211 Diethylamine complexes of borated alkyl catechols and lubricating oil compositions containing the same Vernon R. Small, Jr., Anatoli Onopchenko 1990-12-04 $55,233,000
4971710 Methods for preparing, Group II metal overbased sulfurized alkylphenols 1990-11-20 $120,495,000
4744921 Methods for preparing, group II metal overbased sulfurized alkylphenols 1988-05-17 $51,986,000
4729848 Metal salts of alkyl catechol dithiophosphoric acids and oil compositions containing the salts Elaine S. Yamaguchi 1988-03-08 $49,235,000
4668409 Lubricating oil compositions containing overbased calcium sulfonates and metal salts of alkyl catechol dithiophosphoric acid Elaine S. Yamaguchi 1987-05-26 $28,221,000
4643838 Normally liquid C.sub.18 to C.sub.24 monoalkyl catechols Warren Lowe, Vernon R. Small, Jr. 1987-02-17 $47,262,000
4632771 Normally liquid C.sub.14 to C.sub.18 monoalkyl catechols Warren Lowe, Vernon R. Small, Jr. 1986-12-30 $46,597,000
4629577 Method for improving fuel economy of internal combustion engines 1986-12-16 $15,338,000
4629578 Succinimide complexes of borated alkyl catechols and lubricating oil compositions containing same 1986-12-16 $15,338,000
4495088 Method for improving fuel economy of internal combustion engines 1985-01-22 $6,955,000
4487704 Lubricating oil compositions containing an overbased calcium sulfonate and a zinc cyclic hydrocarbyl dithiophosphate-succinimide complex Elaine S. Yamaguchi 1984-12-11 $26,701,000
4455243 Succinimide complexes of borated fatty acid esters of glycerol and lubricating oil compositions containing same 1984-06-19 $27,470,000
4443360 Oil-soluble zinc cyclic hydrocarbyl dithiophosphate-succinimide complex and lubricating oil compositions containing same Elaine S. Yamaguchi 1984-04-17 $11,756,000
4406803 Method for improving fuel economy of internal combustion engines Timothy R. Erdman 1983-09-27 $85,355,000
4331222 Method for reducing brake noise in oil-immersed disc brakes Timothy R. Erdman 1982-05-25 $23,933,000
4228022 Sulfurized alkylphenol-olefin reaction product lubricating oil additive Warren Lowe 1980-10-14 $31,632,000