Inventor · disambiguated record
John Freel
Also filed as: FREEL JOHN
5 granted patents·177 citations·filing 1980–2000
84Inventor score
Top patents by PatentIndex Score
5 records- 0189US6383236B1Low emission, non-oxygenated fuel compositionCHEVRON USA INC·Filed 2000·Granted May 7, 2002·34 cites·107 claims
- 0285US4303127AMultistage clean-up of product gas from underground coal gasificationGULF RESEARCH DEVELOPMENT CO·Filed 1980·Granted Dec 1, 1981·93 cites·20 claims
- 0375US6132479ALow emission, non-oxygenated fuel compositionCHEVRON USA INC·Filed 1998·Granted Oct 17, 2000·30 cites·25 claims
- 0473US4280881ASeparating indene from unsaturated alkylaromaticsGULF RESEARCH DEVELOPMENT CO·Filed 1980·Granted Jul 28, 1981·11 cites·13 claims
- 0569US4371428ASeparating vinyltoluene from other alkenylaromaticsGULF RESEARCH DEVELOPMENT CO·Filed 1980·Granted Feb 1, 1983·9 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →