Inventor · disambiguated record
Grant Lynn Hartman
Also filed as: HARTMAN GRANT · HARTMAN GRANT L · HARTMAN GRANT LYNN
5 granted patents·3 pending applications·217 citations·filing 1996–2019
81Inventor score
Files withGEN ELECTRIC2HALLIBURTON ENERGY SERV INC2RAMACHANDRAN SUNDER2BAKER HUGHES OILFIELD OPERATIONS LLC1HALLIBURTON ENERGY SERVICES INC1
Top patents by PatentIndex Score
8 records- 0189US6622798B1Method and apparatus for maintaining a fluid column in a wellbore annulusHALLIBURTON ENERGY SERV INC·Filed 2002·Granted Sep 23, 2003·107 cites·21 claims
- 0287US9869157B2Reverse circulation cementing system for cementing a linerHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Jan 16, 2018·14 cites·24 claims
- 0385US10260500B2Downhole dynamometer and method of operationGEN ELECTRIC·Filed 2017·Granted Apr 16, 2019·3 cites·20 claims
- 0480US5829526AMethod and apparatus for placing and cementing casing in horizontal wellsHALLIBURTON ENERGY SERV INC·Filed 1996·Granted Nov 3, 1998·93 cites·32 claims
- 0560US2019308133A1In-line pipe contactorRAMACHANDRAN SUNDER·Filed 2019·Application pending·0 cites
- 0660US2019308136A1In-line pipe contactorRAMACHANDRAN SUNDER·Filed 2019·Application pending·0 cites
- 0748US10995581B2Self-cleaning packer systemBAKER HUGHES OILFIELD OPERATIONS LLC·Filed 2019·Granted May 4, 2021·0 cites·18 claims
- 0833US2017284178A1Artificial lift system and an associated method thereofGEN ELECTRIC·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →