Inventor · disambiguated record
Ole Sevheim
Also filed as: SEVHEIM OLE
7 granted patents·6 pending applications·37 citations·filing 2008–2017
82Inventor score
Technology areasE21B
Files withKLEPPA ERLING3PETROLEUM TECHNOLOGY CO AS2PETROLEUM TECHNOLOGY COMPANY A2STOKKA OYVIND2TVEITEN MAGNAR2
Top patents by PatentIndex Score
13 records- 0176US9587463B2Valve systemPETROLEUM TECH COMPANY·Filed 2014·Granted Mar 7, 2017·6 cites·18 claims
- 0271US9611720B2Valve arrangement and method of operating the samePETROLEUM TECHNOLOGY CO AS·Filed 2014·Granted Apr 4, 2017·4 cites·12 claims
- 0371US8701779B2Bellows valveKLEPPA ERLING·Filed 2009·Granted Apr 22, 2014·13 cites·14 claims
- 0463US9140096B2Valve systemTVEITEN MAGNAR·Filed 2011·Granted Sep 22, 2015·2 cites·5 claims
- 0560US8684073B2Device for injection and stimulation of fluids in a well boreSEVHEIM OLE·Filed 2009·Granted Apr 1, 2014·9 cites·12 claims
- 0650US8291981B2Shear open valveTVEITEN MAGNAR·Filed 2008·Granted Oct 23, 2012·3 cites·7 claims
- 0746US11002102B2Plug and production tubing for a petroleum wellPETROLEUM TECHNOLOGY CO AS·Filed 2017·Granted May 11, 2021·0 cites·10 claims
- 0839US2012125621A1Bellows valveSTOKKA OYVIND·Filed 2009·Application pending·0 cites
- 0938US2010155079A1Bellows valvePETROLEUM TECHNOLOGY COMPANY A·Filed 2008·Application pending·0 cites
- 1037US2013140033A1Actuator deviceKLEPPA ERLING·Filed 2011·Application pending·0 cites
- 1137US2013206239A1Valve assemblySTOKKA OYVIND·Filed 2011·Application pending·0 cites
- 1236US2010212908A1Stealth OrificePETROLEUM TECHNOLOGY COMPANY A·Filed 2008·Application pending·0 cites
- 1336US2013206424A1Valve device for a side pocket or sub in a wellKLEPPA ERLING·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →