Inventor · disambiguated record
Michael B. Crawford
Also filed as: CRAWFORD MICHAEL B · CRAWFORD MICHAEL BURL · CRAWFORD MICHEAL B · CRAWFORD MICHEAL BURL
5 granted patents·3 pending applications·70 citations·filing 1996–2016
76Inventor score
Files withHALLIBURTON ENERGY SERV INC3CRAWFORD MICHAEL BURL1DRESSER IND1JULIUS SÄMANN LTD1ULTERRA DRILLING TECHNOLOGY L1
Top patents by PatentIndex Score
8 records- 0171US8800689B2Floating plug pressure equalization in oilfield drill bitsHALLIBURTON ENERGY SERV INC·Filed 2012·Granted Aug 12, 2014·3 cites·7 claims
- 0270US5709278ARotary cone drill bit with contoured inserts and compactsDRESSER IND·Filed 1996·Granted Jan 20, 1998·62 cites·22 claims
- 0351US7543660B2Roller cone drill bit with debris diverter plugsHALLIBURTON ENERGY SERV INC·Filed 2007·Granted Jun 9, 2009·3 cites·20 claims
- 0445US7484572B2Roller cone drill bit with debris flow paths through associated support armsHALLIBURTON ENERGY SERV INC·Filed 2007·Granted Feb 3, 2009·1 cites·24 claims
- 0537US2016310626A1Removable holder apparatusJULIUS SÄMANN LTD·Filed 2016·Application pending·0 cites
- 0637US2007261891A1Roller Cone Drill Bit With Enhanced Debris Diverter GroovesWILLIAMS MARK E·Filed 2007·Application pending·0 cites
- 0732US8579046B2Pressure compensator for drill bitCRAWFORD MICHAEL BURL·Filed 2007·Granted Nov 12, 2013·1 cites·21 claims
- 0830US2010126775A1Helical chisel insert for rock bitsULTERRA DRILLING TECHNOLOGY L·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →