Inventor · disambiguated record
John H. Udelhofen
Also filed as: UDELHOFEN JOHN · UDELHOFEN JOHN H
7 granted patents·364 citations·filing 1973–2017
86Inventor score
Top patents by PatentIndex Score
7 records- 0195US4231759ALiquid hydrocarbon fuels containing high molecular weight Mannich basesSTANDARD OIL CO INDIANA·Filed 1973·Granted Nov 4, 1980·277 cites·9 claims
- 0293US4334085ATransamination process for Mannich productsSTANDARD OIL CO INDIANA·Filed 1978·Granted Jun 8, 1982·33 cites·8 claims
- 0380US4282106ALow viscosity oilsSTANDARD OIL CO INDIANA·Filed 1979·Granted Aug 4, 1981·28 cites·7 claims
- 0462US4832857AProcess for the preparation of overbased molybdenum alkaline earth metal and alkali metal dispersionsAMOCO CORP·Filed 1988·Granted May 23, 1989·17 cites·15 claims
- 0559US9876334B2Breaker assembly with mating platform and well connectionELECTRONIC THEATRE CONTROLS INC·Filed 2014·Granted Jan 23, 2018·2 cites·15 claims
- 0657US4202784ATertiary carbinamine modified mannich compositions and lubricants containing sameSTANDARD OIL CO INDIANA·Filed 1979·Granted May 13, 1980·7 cites·8 claims
- 0749US10148071B2Breaker module with recessed breaker connectionsELECTRONIC THEATRE CONTROLS INC·Filed 2017·Granted Dec 4, 2018·0 cites·10 claims
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