Inventor · disambiguated record
David Grant
Also filed as: GRANT DAVID · GRANT DAVID E · GRANT DAVID EARLE
23 granted patents·1 pending application·80 citations·filing 1983–2022
94Inventor score
Files withHALLIBURTON MFG & SERV LTD17BRUCE STEPHEN EDMUND1DARCY TECH LIMITED1DARCY TECH LTD1ENVIROTECH CORP1
Top patents by PatentIndex Score
24 records- 0196US10975660B2Downhole apparatus with a valve arrangementHALLIBURTON MFG & SERV LTD·Filed 2017·Granted Apr 13, 2021·11 cites·20 claims
- 0291US9353606B2Downhole method and apparatusBRUCE STEPHEN EDMUND·Filed 2011·Granted May 31, 2016·21 cites·21 claims
- 0389US10718183B2Downhole apparatus for disrupting filter cakeHALLIBURTON MFG & SERV LTD·Filed 2014·Granted Jul 21, 2020·19 cites·28 claims
- 0485US11542779B2Downhole apparatus with a valve arrangementHALLIBURTON MFG & SERV LTD·Filed 2021·Granted Jan 3, 2023·1 cites·20 claims
- 0585US9694673B2Tank assembly with retaining ringNISSAN NORTH AMERICA INC·Filed 2015·Granted Jul 4, 2017·10 cites·18 claims
- 0679US12037873B2Downhole apparatus with a valve arrangementHALLIBURTON MFG & SERV LTD·Filed 2022·Granted Jul 16, 2024·0 cites·22 claims
- 0779US12018547B2Downhole apparatus with a valve arrangementHALLIBURTON MFG & SERV LTD·Filed 2022·Granted Jun 25, 2024·0 cites·28 claims
- 0879US12018546B2Downhole apparatus with a valve arrangementHALLIBURTON MFG & SERV LTD·Filed 2022·Granted Jun 25, 2024·0 cites·30 claims
- 0979US12012825B2Downhole apparatus with a valve arrangementHALLIBURTON MFG & SERV LTD·Filed 2022·Granted Jun 18, 2024·0 cites·16 claims
- 1079US12006790B2Downhole apparatus with a valve arrangementHALLIBURTON MFG & SERV LTD·Filed 2022·Granted Jun 11, 2024·0 cites·16 claims
- 1179US11946339B2Downhole apparatus with a valve arrangementHALLIBURTON MFG & SERV LTD·Filed 2022·Granted Apr 2, 2024·0 cites·20 claims
- 1279US11939839B2Downhole apparatus with a valve arrangementHALLIBURTON MFG & SERV LTD·Filed 2022·Granted Mar 26, 2024·0 cites·18 claims
- 1379US11920434B2Downhole apparatus with a valve arrangementHALLIBURTON MFG & SERV LTD·Filed 2022·Granted Mar 5, 2024·0 cites·20 claims
- 1479US11920433B2Downhole apparatus with a valve arrangementHALLIBURTON MFG & SERV LTD·Filed 2022·Granted Mar 5, 2024·0 cites·20 claims
- 1579US11828134B2Downhole apparatus with a valve arrangementHALLIBURTON MFG & SERV LTD·Filed 2022·Granted Nov 28, 2023·0 cites·23 claims
- 1671US10337297B2Downhole method and apparatusHALLIBURTON MFG & SERV LTD·Filed 2017·Granted Jul 2, 2019·1 cites·7 claims
- 1769US10613691B2Downhole apparatusHALLIBURTON MFG & SERV LTD·Filed 2017·Granted Apr 7, 2020·1 cites·18 claims
- 1865US10400553B2Downhole apparatusHALLIBURTON MFG & SERV LTD·Filed 2014·Granted Sep 3, 2019·2 cites·24 claims
- 1957US11215037B2Downhole apparatusHALLIBURTON MFG & SERV LTD·Filed 2019·Granted Jan 4, 2022·0 cites·20 claims
- 2056US4439938ACoupling mechanismENVIROTECH CORP·Filed 1983·Granted Apr 3, 1984·13 cites·8 claims
- 2149US9708893B2Downhole method and apparatusDARCY TECH LTD·Filed 2016·Granted Jul 18, 2017·0 cites·25 claims
- 2246US9851852B2Downhole apparatusDARCY TECH LIMITED·Filed 2013·Granted Dec 26, 2017·0 cites·18 claims
- 2344US8734082B2Implement support deviceGRANT DAVID E·Filed 2011·Granted May 27, 2014·1 cites·30 claims
- 2435US2017015161A1Attachment apparatus for securing implements to a vehicleGRANT DAVID EARLE·Filed 2016·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when David Grant files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →