Inventor · disambiguated record
Ewan Ogilvie Robb
Also filed as: ROBB EWAN O · ROBB EWAN OGILVIE
6 granted patents·393 citations·filing 1998–2019
85Inventor score
Technology areasE21B
Top patents by PatentIndex Score
6 records- 0193US6076600APlug apparatus having a dispersible plug member and a fluid barrierHALLIBURTON ENERGY SERV INC·Filed 1998·Granted Jun 20, 2000·188 cites·108 claims
- 0290US6161622ARemote actuated plug methodHALLIBURTON ENERGY SERV INC·Filed 1998·Granted Dec 19, 2000·154 cites·27 claims
- 0378US9657550B2Pressure equalization for dual seat ball valveHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted May 23, 2017·7 cites·20 claims
- 0474US6431276B1Remote actuated plug apparatusHALLIBURTON ENERGY SERV INC·Filed 2000·Granted Aug 13, 2002·44 cites·17 claims
- 0553US10577889B2Constructed annular safety valve element packageHALLIBURTON ENERGY SERVICES INC·Filed 2019·Granted Mar 3, 2020·0 cites·15 claims
- 0638US10253605B2Constructed annular safety valve element packageROBB EWAN OGILVIE·Filed 2012·Granted Apr 9, 2019·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →