Inventor · disambiguated record

John C. Jansma

Also filed as: JANSMA JOHN C

2 granted patents·50 citations·filing 1977–1982

64Inventor score

Technology areasC10B

Files withSTANDARD OIL CO OHIO2

Top patents by PatentIndex Score

2 records

0179US4518486AConcurrent production of two grades of coke using a single fractionatorSTANDARD OIL CO OHIO·Filed 1982·Granted May 21, 1985·35 cites·7 claims
0270US4168224ACoking drum and process for forming improved graphite cokeSTANDARD OIL CO OHIO·Filed 1977·Granted Sep 18, 1979·15 cites·11 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →