MC

Micheal Burl Crawford

HS Halliburton Energy Services: 8 patents #821 of 4,711Top 20%
DI Dresser Industries: 4 patents #60 of 787Top 8%
📍 Conroe, TX: #71 of 788 inventorsTop 10%
🗺 Texas: #10,587 of 125,132 inventorsTop 9%
Overall (All Time): #341,068 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
11577349 Method of forming a journal for a roller cone drill bit Young-Ho Lee 2023-02-14
10774593 Sealing elements for roller cone bits Shiwei Qin, Douglas Caraway 2020-09-15
10619419 Drill bit having improved journal bearings Mark E. Williams, Jay S. Bird, Young-Ho Lee 2020-04-14
10494872 Drill bit arm pocket 2019-12-03
10145178 Roller cone seal failure detection using an integrated computational element Shilin Chen 2018-12-04
9988850 Symmetrical seal Mark E. Williams, Young-Ho Lee, David P. Duckworth, Zhaohui Shan 2018-06-05
9359822 Floating plug pressure equalization in oilfield drill bits 2016-06-07
8448723 Seal assembly for drill bit Pele Jason Nunley, Richard A. Flak 2013-05-28
8312942 Roller cone drill bits with improved fluid flow Tuck Leong Ho 2012-11-20
6290006 Apparatus and method for a roller bit using collimated jets sweeping separate bottom-hole tracks 2001-09-18
6260635 Rotary cone drill bit with enhanced journal bushing 2001-07-17
6220374 Rotary cone drill bit with enhanced thrust bearing flange 2001-04-24
4679640 Method for case hardening rock bits and rock bits formed thereby 1987-07-14
4427081 Rotary rock bit with independently true rolling cutters 1984-01-24