Inventor · disambiguated record
Tom Unsgaard
Also filed as: UNSGAARD TOM
5 granted patents·1 pending application·187 citations·filing 1998–2011
81Inventor score
Technology areasE21B
Top patents by PatentIndex Score
6 records- 0182US6209636B1Wellbore primary barrier and related systemsWEATHERFORD LAMB·Filed 1999·Granted Apr 3, 2001·102 cites·54 claims
- 0268US6158512AMethod and apparatus for the removal of sand in an underwater wellTESTTECH SERVICES AS·Filed 1998·Granted Dec 12, 2000·70 cites·6 claims
- 0340US7900695B2Well pump deviceUNSGAARD TOM·Filed 2005·Granted Mar 8, 2011·2 cites·1 claims
- 0437US2012043089A1Retrieving a subsea tree plugHOFFMAN COREY EUGENE·Filed 2011·Application pending·0 cites
- 0531US7610963B2Method and device for fluid displacementHPI AS·Filed 2005·Granted Nov 3, 2009·1 cites·20 claims
- 0631US6119775AInflatable downhole sealWEATHERFORD LAMB·Filed 1998·Granted Sep 19, 2000·12 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Tom Unsgaard 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 →