Inventor · disambiguated record
Calvin B. Holden
Also filed as: HOLDEN CALVIN B · STEIGER ROGER A
3 granted patents·127 citations·filing 1975–1979
76Inventor score
Files withPPG INDUSTRIES INC3
Top patents by PatentIndex Score
3 records- 0190US4181583AMethod for heating electrolytic cellPPG INDUSTRIES INC·Filed 1978·Granted Jan 1, 1980·33 cites·24 claims
- 0289US4022872AProcess for preparing finely-divided refractory powdersPPG INDUSTRIES INC·Filed 1975·Granted May 10, 1977·75 cites·15 claims
- 0374US4181584AMethod for heating electrolytic cellPPG INDUSTRIES INC·Filed 1979·Granted Jan 1, 1980·19 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →