Inventor · disambiguated record
John G. Schaffhausen
Also filed as: SCHAFFHAUSEN JOHN G
10 granted patents·188 citations·filing 1982–1991
90Inventor score
Top patents by PatentIndex Score
10 records- 0193US5204012ASupplemental rust inhibitors and rust inhibition in internal combustion enginesETHYL CORP·Filed 1989·Granted Apr 20, 1993·89 cites·18 claims
- 0277US4396774AUse of a catalyst to inhibit formation of tar during the "ENE" reaction of an ethylenically unsaturated alpha, beta dicarboxylic acid compound and an ethylenically unsaturated hydrocarbonSTANDARD OIL CO INDIANA·Filed 1982·Granted Aug 2, 1983·13 cites·10 claims
- 0375US4485023ALubricating oil containing Mannich condensation product of ethylene/propylene/carbonyl polymersSTANDARD OIL CO INDIANA·Filed 1983·Granted Nov 27, 1984·23 cites·17 claims
- 0472US4424317AMannich condensation product of ethylene/propylene/carbonyl polymersSTANDARD OIL CO INDIANA·Filed 1982·Granted Jan 3, 1984·20 cites·17 claims
- 0571US4473482AEthylene/propylene/co polymersSTANDARD OIL CO INDIANA·Filed 1982·Granted Sep 25, 1984·19 cites·18 claims
- 0668US4906778AProcess for the production of aminoguanidine bicarbonateAMOCO CORP·Filed 1988·Granted Mar 6, 1990·9 cites·9 claims
- 0742US5235115APreparation of 2-alkoxy-6-ethylnaphthalenesAMOCO CORP·Filed 1991·Granted Aug 10, 1993·2 cites·18 claims
- 0840US4434270AEthylene/propylene/vinyl alkyl ketone polymersSTANDARD OIL CO INDIANA·Filed 1982·Granted Feb 28, 1984·5 cites·16 claims
- 0937US4444956AProcess for preparation of Mannich condensation productSTANDARD OIL CO INDIANA·Filed 1982·Granted Apr 24, 1984·4 cites·13 claims
- 1035US4844827ALubricating oil additiveAMOCO CORP·Filed 1988·Granted Jul 4, 1989·4 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →