Inventor · disambiguated record
Douglas Hebert
Also filed as: HEBERT DOUGLAS · HEBERT DOUGLAS W
5 granted patents·48 citations·filing 1988–2019
78Inventor score
Top patents by PatentIndex Score
5 records- 0191US10385663B2Subsurface pump for use in well artificial lift operations having an interior flow passage of a plunger being in communication with a fluid chamber via a filterWEATHERFORD TECH HOLDINGS LLC·Filed 2016·Granted Aug 20, 2019·7 cites·12 claims
- 0279US10450847B2Subsurface reciprocating pump for gassy and sandy fluidsWEATHERFORD TECH HOLDINGS LLC·Filed 2017·Granted Oct 22, 2019·2 cites·20 claims
- 0366USD719344SPrescription safe for medicine cabinetRX ARMORY LLC·Filed 2013·Granted Dec 16, 2014·20 cites·1 claims
- 0460US11255171B2Method of pumping fluid from a wellbore by a subsurface pump having an interior flow passage in communication with a fluid chamber via a filter positioned in a side wall of a plungerWEATHERFORD TECH HOLDINGS LLC·Filed 2019·Granted Feb 22, 2022·0 cites·14 claims
- 0538US4907953ALocking gas equalizer assemblyHEBERT DOUGLAS W·Filed 1988·Granted Mar 13, 1990·19 cites·24 claims
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