Inventor · disambiguated record
Lewis D. Proctor
Also filed as: PROCTOR LEWIS D
3 granted patents·79 citations·filing 1986–1993
74Inventor score
Technology areasE21B
Top patents by PatentIndex Score
3 records- 0164US4840229AMultiple position service seal unit with positive position indicating meansOTIS ENG CO·Filed 1987·Granted Jun 20, 1989·36 cites·4 claims
- 0262US4722392AMultiple position service seal unit with positive position indicating meansOTIS ENG CO·Filed 1986·Granted Feb 2, 1988·34 cites·2 claims
- 0333US5329999AAnnular safety systemHALLIBURTON CO·Filed 1993·Granted Jul 19, 1994·9 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →