Inventor · disambiguated record
Karl B. Pierson
Also filed as: PIERSON KARL B
3 granted patents·113 citations·filing 1975–1987
75Inventor score
Top patents by PatentIndex Score
3 records- 0190US4290098AReceptacle apparatus for housing components of a lighting systemBETTS MACHINE COMPANY·Filed 1979·Granted Sep 15, 1981·73 cites·12 claims
- 0269US3974850AHigh volume fluid pressure relief valveBETTS MACHINE COMPANY·Filed 1975·Granted Aug 17, 1976·26 cites·20 claims
- 0343US4709901AFluid power operated sliding gate valve system for tank trucks, pipelines, storage tanks and the likeBETTS IND INC·Filed 1987·Granted Dec 1, 1987·14 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →