Inventor · disambiguated record
John H. Gammage
Also filed as: GAMMAGE JOHN H · GAMMAGE JOHN HUDSON
4 granted patents·58 citations·filing 2005–2020
73Inventor score
Top patents by PatentIndex Score
4 records- 0192US9920412B2Chromium-free thermal spray composition, method, and apparatusANTELOPE OIL TOOL & MFG CO LLC·Filed 2014·Granted Mar 20, 2018·8 cites·21 claims
- 0292US7487840B2Wear resistant layer for downhole well equipmentWEAR SOX L P·Filed 2005·Granted Feb 10, 2009·49 cites·38 claims
- 0384US10577685B2Chromium-free thermal spray composition, method, and apparatusINNOVEX DOWNHOLE SOLUTIONS INC·Filed 2018·Granted Mar 3, 2020·1 cites·19 claims
- 0469US11608552B2Chromium-free thermal spray composition, method, and apparatusINNOVEX DOWNHOLE SOLUTIONS INC·Filed 2020·Granted Mar 21, 2023·0 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →