Inventor · disambiguated record
Micheal Burl Crawford
Also filed as: CRAWFORD MICHEAL B · CRAWFORD MICHEAL BURL
14 granted patents·1 pending application·321 citations·filing 1982–2020
92Inventor score
Files withHALLIBURTON ENERGY SERVICES INC8DRESSER IND4CRAWFORD MICHEAL BURL1HALLIBURTON ENGREY SERVICE INC1HO TUCK L1
Top patents by PatentIndex Score
15 records- 0184US4427081ARotary rock bit with independently true rolling cuttersDRESSER IND·Filed 1982·Granted Jan 24, 1984·66 cites·3 claims
- 0280US6260635B1Rotary cone drill bit with enhanced journal bushingDRESSER IND·Filed 1999·Granted Jul 17, 2001·89 cites·10 claims
- 0376US8312942B2Roller cone drill bits with improved fluid flowHO TUCK L·Filed 2007·Granted Nov 20, 2012·23 cites·22 claims
- 0467US6220374B1Rotary cone drill bit with enhanced thrust bearing flangeDRESSER IND·Filed 1999·Granted Apr 24, 2001·56 cites·27 claims
- 0565US4679640AMethod for case hardening rock bits and rock bits formed therebyDRESSER IND·Filed 1986·Granted Jul 14, 1987·37 cites·15 claims
- 0662US6290006B1Apparatus and method for a roller bit using collimated jets sweeping separate bottom-hole tracksHALLIBURTON ENGREY SERVICE INC·Filed 1999·Granted Sep 18, 2001·46 cites·29 claims
- 0761US11577349B2Method of forming a journal for a roller cone drill bitHALLIBURTON ENERGY SERVICES INC·Filed 2020·Granted Feb 14, 2023·0 cites·10 claims
- 0859US9359822B2Floating plug pressure equalization in oilfield drill bitsHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Jun 7, 2016·1 cites·22 claims
- 0958US10619419B2Drill bit having improved journal bearingsHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Apr 14, 2020·1 cites·13 claims
- 1057US10494872B2Drill bit arm pocketHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Dec 3, 2019·1 cites·20 claims
- 1149US10145178B2Roller cone seal failure detection using an integrated computational elementHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Dec 4, 2018·0 cites·16 claims
- 1249US2018195347A1Roller cone drill bit journal with asymmetric ball race and extended friction raceHALLIBURTON ENERGY SERVICES INC·Filed 2015·Application pending·0 cites
- 1343US10774593B2Sealing elements for roller cone bitsHALLIBURTON ENERGY SERVICES INC·Filed 2016·Granted Sep 15, 2020·0 cites·28 claims
- 1441US9988850B2Symmetrical sealHALLIBURTON ENERGY SERVICES INC·Filed 2012·Granted Jun 5, 2018·0 cites·24 claims
- 1535US8448723B2Seal assembly for drill bitCRAWFORD MICHEAL BURL·Filed 2007·Granted May 28, 2013·1 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →