Inventor · disambiguated record
John F. Marsh
Also filed as: MARSH JOHN · MARSH JOHN F
11 granted patents·1 pending application·390 citations·filing 1983–2023
92Inventor score
Files withEXXON CHEMICAL PATENTS INC6EXXON RESEARCH ENGINEERING CO3BRICKHOUSE INNOVATIONS LLC1COLCLOUGH TERENCE1HS MARSTON AEROSPACE LTD1
Top patents by PatentIndex Score
12 records- 0193US4867890ALubricating oil compositions containing ashless dispersant, zinc dihydrocarbyldithiophosphate, metal detergent and a copper compoundCOLCLOUGH TERENCE·Filed 1987·Granted Sep 19, 1989·257 cites·82 claims
- 0282US10539378B2Heat exchangerHS MARSTON AEROSPACE LTD·Filed 2017·Granted Jan 21, 2020·3 cites·11 claims
- 0381US5112506AOverbased metal sulphonate compositionEXXON CHEMICAL PATENTS INC·Filed 1988·Granted May 12, 1992·26 cites·19 claims
- 0481US5069804ALubricating oil additivesEXXON RESEARCH ENGINEERING CO·Filed 1988·Granted Dec 3, 1991·30 cites·14 claims
- 0571US5534168APreparation of overbased magnesium sulphonatesEXXON CHEMICAL PATENTS INC·Filed 1992·Granted Jul 9, 1996·25 cites·11 claims
- 0656US2025076092A1Apparatus for measuring the velocity of a fluidBRICKHOUSE INNOVATIONS LLC·Filed 2023·Application pending·0 cites
- 0755US5137648AOverbased metal sulphonate compositionEXXON CHEMICAL PATENTS INC·Filed 1991·Granted Aug 11, 1992·9 cites·21 claims
- 0852US4957642AMagnesium phenate detergentsEXXON CHEMICAL PATENTS INC·Filed 1988·Granted Sep 18, 1990·12 cites·13 claims
- 0948US4557872ABasic alkaline earth metal sulphonatesEXXON RESEARCH ENGINEERING CO·Filed 1983·Granted Dec 10, 1985·6 cites·7 claims
- 1047US5089155AOverbased magnesium sulphonate compositionEXXON CHEMICAL PATENTS INC·Filed 1990·Granted Feb 18, 1992·7 cites·12 claims
- 1147US4839094AOverbased alkali metal additivesEXXON CHEMICAL PATENTS INC·Filed 1987·Granted Jun 13, 1989·9 cites·8 claims
- 1243USRE35461ELubricating oil additivesEXXON RESEARCH ENGINEERING CO·Filed 1993·Granted Feb 25, 1997·6 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →