Inventor · disambiguated record
Dirk Ligthelm
Also filed as: LIGTHELM DIRK JACOB
2 granted patents·3 pending applications·94 citations·filing 2002–2014
66Inventor score
Top patents by PatentIndex Score
5 records- 0181US7252162B2Method and device for injecting a fluid into a formationSHELL OIL CO·Filed 2002·Granted Aug 7, 2007·82 cites·17 claims
- 0243US7243720B2Inhibiting breakthrough of driving fluid via a permeable geological layer into an oil production wellSHELL OIL CO·Filed 2003·Granted Jul 17, 2007·12 cites·16 claims
- 0330US2015107840A1Process for recovery of oil from an oil-bearing formationSHELL OIL CO·Filed 2014·Application pending·0 cites
- 0429US2003213592A1Method of producing hydrocarbon gasFiled 2003·Application pending·0 cites
- 0527US2012090833A1Water injection systems and methodsLIGTHELM DIRK JACOB·Filed 2011·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Dirk Ligthelm 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 →