Inventor · disambiguated record
Steven A. Heffernen
Also filed as: HEFFERNEN STEVEN A
4 granted patents·43 citations·filing 1991–1993
76Inventor score
Files withJOHNSON MATTHEY INC4
Top patents by PatentIndex Score
4 records- 0171US5122185ALow pressure drop, high surface area platinum recovery system in a nitric acid plantJOHNSON MATTHEY INC·Filed 1991·Granted Jun 16, 1992·18 cites·52 claims
- 0246US5356603AMethod for the production of hydrocyanic acid using a corrugated catalystJOHNSON MATTHEY INC·Filed 1993·Granted Oct 18, 1994·12 cites·21 claims
- 0346US5160722ALow pressure drop, high surface area ammonia oxidation catalystJOHNSON MATTHEY INC·Filed 1991·Granted Nov 3, 1992·8 cites·20 claims
- 0436US5278124ALow pressure drop, high surface area ammonia oxidation catalystJOHNSON MATTHEY INC·Filed 1992·Granted Jan 11, 1994·5 cites·29 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →