Inventor · disambiguated record

Karl E. Spear

Also filed as: SPEAR KARL E

1 granted patent·66 citations·filing 1989–1989

51Inventor score
Technology areasC30B
Files withPENNSYLVANIA RES CORP1

Top patents by PatentIndex Score

1 record

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →