For the Inventor, By the Inventor

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Carrollton, TX, United States of America

Varel International Ltd.

USPTO Granted Patents = 11

Trademarks = 1

Forward Citations = 276

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11 inventors (with patents filed for the assignee):

Gary M Thigpen (3 out of 18 patents)

Christopher S Byrd (3 out of 3 patents)

Carl W Keith (3 out of 23 patents)

4. Alfazazi Dourfaye (2 out of 21 patents)

5. Cary Andrew Maurstad (1 out of 4 patents)

6. Zane Michael Pettiet (1 out of 2 patents)

7. Bruno Cuillier (1 out of 2 patents)

8. Philippe Cravatte (1 out of 5 patents)

9. Gilles J-p Gallego (1 out of 1 patent)

10. Zakaria Maouche (1 out of 1 patent)

11. Chris S Byrd (1 out of 1 patent)

11 patents: Sort by Forward Citations

1. 8544568 - Shoulder durability enhancement for a PDC drill bit using secondary and tertiary cutting elements (2013-10-01),

2. 7000712 - Bearing seal (2006-02-21),

3. 6973978 - Drilling tool having an expandable bladder and method for using same (2005-12-13),

4. 6926099 - Drill out bi-center bit and method for using same (2005-08-09),

5. 6904983 - Low-contact area cutting element (2005-06-14),

6. 6892832 - Breakable washer earth boring bit (2005-05-17),

7. 6837317 - Bearing seal (2005-01-04),

8. 6834733 - Spiral wave bladed drag bit (2004-12-28),

9. 6568492 - Drag-type casing mill/drill bit (2003-05-27),

10. 6488106 - Superabrasive cutting element (2002-12-03),

11. 5944125 - Rock bit with improved thrust face (1999-08-31),

Varel International Ltd. is a leading provider of drill bits and related services for the oil and gas industry. With a focus on innovation and quality, Varel has built a reputation for delivering high-performance products to its customers worldwide. The company's advanced technologies and experienced team make them a trusted partner for drilling solutions in the most challenging environments.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

11 Patents

#28 in Carrollton, TX

#1,688 in Texas

#26,668 in US

#50,126 in the World

Carrollton, TX, United States of America

Varel International Ltd.

Forward Citations = 276

11 inventors:

Gary M Thigpen (3 out of 18 patents)

Christopher S Byrd (3 out of 3 patents)

Carl W Keith (3 out of 23 patents)

4. Alfazazi Dourfaye (2 out of 21 patents)

5. Cary Andrew Maurstad (1 out of 4 patents)

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