Inventor · disambiguated record
John J. Pietruszewski
Also filed as: PIETRUSZEWSKI JOHN J · PIETRUSZEWSKI JOHN JOSEPH
5 granted patents·215 citations·filing 1974–1991
84Inventor score
Top patents by PatentIndex Score
5 records- 0187US3956124AHypolimnion oxygenationUNION CARBIDE CORP·Filed 1974·Granted May 11, 1976·62 cites·8 claims
- 0286US4066722AApparatus for sparging gas into liquidUNION CARBIDE CORP·Filed 1976·Granted Jan 3, 1978·67 cites·14 claims
- 0378US4140495ATurndown control for pressure swing adsorptionUNION CARBIDE CORP·Filed 1977·Granted Feb 20, 1979·36 cites·6 claims
- 0476US4867766AOxygen enriched air systemUNION CARBIDE CORP·Filed 1988·Granted Sep 19, 1989·39 cites·21 claims
- 0542USRE34434EOxygen enriched air systemPRAXAIR TECHNOLOGY INC·Filed 1991·Granted Nov 9, 1993·11 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →