Inventor · disambiguated record
Alf K. Sevre
Also filed as: SEVRE ALF K · SEVRE ALF KOLBJOERN · SEVRE ALF KOLBJØRN
10 granted patents·74 citations·filing 2008–2015
88Inventor score
Technology areasE21B
Files withHALLIBURTON ENERGY SERV INC2HALLIBURTON ENERGY SERVICES INC2SEVRE ALF K2ALLISON DAVID B1HINKIE RONALD L1
Top patents by PatentIndex Score
10 records- 0186US8127859B2Use of swellable material in an annular seal element to prevent leakage in a subterranean wellALLISON DAVID B·Filed 2010·Granted Mar 6, 2012·13 cites·5 claims
- 0286US7784532B2Shunt tube flowpaths extending through swellable packersHALLIBURTON ENERGY SERV INC·Filed 2008·Granted Aug 31, 2010·34 cites·22 claims
- 0377US7841417B2Use of swellable material in an annular seal element to prevent leakage in a subterranean wellHALLIBURTON ENERGY SERV INC·Filed 2008·Granted Nov 30, 2010·16 cites·28 claims
- 0469US9074464B2Verification of swelling in a wellHINKIE RONALD L·Filed 2011·Granted Jul 7, 2015·3 cites·9 claims
- 0567US9938817B2Verification of swelling in a wellHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Apr 10, 2018·1 cites·3 claims
- 0662US8459366B2Temperature dependent swelling of a swellable materialSEVRE ALF K·Filed 2011·Granted Jun 11, 2013·3 cites·20 claims
- 0757US8833443B2Retrievable swellable packerSEVRE ALF KOLBJØRN·Filed 2010·Granted Sep 16, 2014·2 cites·10 claims
- 0849US9540901B2Retrievable swellable packerHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Jan 10, 2017·0 cites·20 claims
- 0949US8607883B2Swellable packer having thermal compensationSEVRE ALF KOLBJOERN·Filed 2010·Granted Dec 17, 2013·1 cites·15 claims
- 1048US8960270B2Shunt tube flowpaths extending through swellable packersSEVRE ALF K·Filed 2010·Granted Feb 24, 2015·1 cites·10 claims
Join the waitlist — get patent alerts
Get an alert when Alf K. Sevre 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 →