Inventor · disambiguated record
Jozeph Robert Marcin
Also filed as: MARCIN JOZEPH R · MARCIN JOZEPH ROBERT
5 granted patents·3 pending applications·43 citations·filing 2001–2019
78Inventor score
Files withVANGUARD COMPLETIONS LTD2HANSON ANDREW JAMES1SCHLUMBERGER TECHNOLOGY CORP1WATERHOUSE FRANCIS IAN1WEATHERFORD INTERNATIONAL INC1
Top patents by PatentIndex Score
8 records- 0188US7128147B2Modular liner hangerWEATHERFORD LAMB·Filed 2005·Granted Oct 31, 2006·20 cites·4 claims
- 0284US10472927B2Downhole drop plugs, downhole valves, frac tools, and related methods of useVANGUARD COMPLETIONS LTD·Filed 2016·Granted Nov 12, 2019·14 cites·16 claims
- 0376US9909390B2Stage tool with lower tubing isolationWEATHERFORD TECH HOLDINGS LLC·Filed 2015·Granted Mar 6, 2018·4 cites·15 claims
- 0464US9334700B2Reverse cementing valveHANSON ANDREW JAMES·Filed 2012·Granted May 10, 2016·5 cites·27 claims
- 0547US2020182013A1Downhole drop plugs, downhole valves, frac tools, and related methods of useVANGUARD COMPLETIONS LTD·Filed 2019·Application pending·0 cites
- 0633US2003127222A1Modular liner hangerWEATHERFORD INTERNATIONAL INC·Filed 2002·Application pending·0 cites
- 0730US6561272B2Technique for deploying a liner into a subterranean wellboreSCHLUMBERGER TECHNOLOGY CORP·Filed 2001·Granted May 13, 2003·0 cites·30 claims
- 0825US2013186623A1Steam splitterWATERHOUSE FRANCIS IAN·Filed 2012·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →