Inventor · disambiguated record
Edmund J. Piasek, Deceased
Also filed as: PIASEK EDMUND J
4 granted patents·78 citations·filing 1974–1981
77Inventor score
Top patents by PatentIndex Score
4 records- 0192US3985802ALubricating oils containing high molecular weight Mannich condensation productsSTANDARD OIL CO INDIANA·Filed 1974·Granted Oct 12, 1976·54 cites·3 claims
- 0254US4070402ATerpolymer alkylated phenolSTANDARD OIL CO·Filed 1976·Granted Jan 24, 1978·9 cites·9 claims
- 0351US4425249ABenzene sulfonic acid catalyzed aromatic Mannich products from alkyl phenolsSTANDARD OIL CO INDIANA·Filed 1979·Granted Jan 10, 1984·6 cites·6 claims
- 0447US4425245ABenzene sulfonic acid modified aromatic Mannich products from alkyl phenolsSTANDARD OIL CO INDIANA·Filed 1981·Granted Jan 10, 1984·9 cites·3 claims
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