Inventor · disambiguated record
Duffer B. Crawford
Also filed as: BECKER COLMAN L · CRAWFORD DUFFER · CRAWFORD DUFFER B · CRAWFORD DUFFER BROOKS
5 granted patents·201 citations·filing 1976–2008
84Inventor score
Top patents by PatentIndex Score
5 records- 0191US4162290AParallel steam reformers to provide low energy processPULLMAN INC·Filed 1977·Granted Jul 24, 1979·46 cites·4 claims
- 0289US4693731ARemoval of mercury from gasesKELLOGG M W CO·Filed 1986·Granted Sep 15, 1987·90 cites·14 claims
- 0388US4079017AParallel steam reformers to provide low energy processPULLMAN INC·Filed 1976·Granted Mar 14, 1978·38 cites·10 claims
- 0481US8522574B2Method for nitrogen rejection and or helium recovery in an LNG liquefaction plantCRAWFORD DUFFER·Filed 2008·Granted Sep 3, 2013·15 cites·20 claims
- 0545US4726826AMethod for partial condensation of hydrocarbon gas mixturesKELLOGG M W CO·Filed 1987·Granted Feb 23, 1988·12 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →