Inventor · disambiguated record
Robert D. Cotherman
Also filed as: COTHERMAN ROBERT D
2 granted patents·109 citations·filing 1988–1988
68Inventor score
Technology areasE21B
Files withSHELL WESTERN E & P INC2
Top patents by PatentIndex Score
2 records- 0179US4913630AMethod and apparatus for high-efficiency gas separation upstream of a submersible pumpSHELL WESTERN E & P INC·Filed 1988·Granted Apr 3, 1990·76 cites·4 claims
- 0258US4901413AMethod and apparatus for establishing multi-stage gas separation upstream of a submersible pumpSHELL WESTERN E & P INC·Filed 1988·Granted Feb 20, 1990·33 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →