Guy Lefort

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The Woodlands, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Rotary drill bits with back-up cutting elements to optimize bit life
- Patent number 10,214,966
- Issue date Feb 26, 2019
- Halliburton Energy Services, Inc.
- Shilin Chen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Drill bit with extended life seal
- Patent number 9,677,341
- Issue date Jun 13, 2017
- Halliburton Energy Services, Inc.
- Seth G. Anderle
- E21 - EARTH DRILLING MINING
Information Patent Grant
Roller cone bit with improved seal gland design
- Patent number 6,752,223
- Issue date Jun 22, 2004
- Halliburton Energy Services, Inc.
- Amiya K. Panigrahi
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Roller cone bit with improved seal gland design
- Patent number 6,279,671
- Issue date Aug 28, 2001
- Amiya K. Panigrahi
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
ROTARY DRILL BITS WITH BACK-UP CUTTING ELEMENTS TO OPTIMIZE BIT LIFE
- Publication number 20150152689
- Publication date Jun 4, 2015
- Halliburton Energy Services, Inc.
- Shilin Chen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DRILL BIT WITH EXTENDED LIFE SEAL
- Publication number 20120111639
- Publication date May 10, 2012
- Halliburton Energy Services, Inc.
- Seth G. Anderle
- E21 - EARTH DRILLING MINING
Information Patent Application
Roller cone bit with improved seal gland design
- Publication number 20020027326
- Publication date Mar 7, 2002
- Amiya K. Panigrahi
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...