Inventor · disambiguated record
David L. Sponseller
Also filed as: SPONSELLER DAVID L
3 granted patents·76 citations·filing 1982–1995
73Inventor score
Top patents by PatentIndex Score
3 records- 0185US5558150AMethod of producing a cast multilayered alloy tube and the product thereofERIM·Filed 1995·Granted Sep 24, 1996·44 cites·20 claims
- 0279US4533405ATubular high strength low alloy steel for oil and gas wellsAMAX INC·Filed 1984·Granted Aug 6, 1985·24 cites·4 claims
- 0346US4453986ATubular high strength low alloy steel for oil and gas wellsAMAX INC·Filed 1982·Granted Jun 12, 1984·8 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →