For the Inventor, By the Inventor

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Salt Lake City, UT, United States of America

Longyear Tm, Inc.

USPTO Granted Patents = 145

% Expired Patents = 43.4

CIPO Patents = 31

EPO Patents = 35

Trademarks = 26

Forward Citations = 1,109

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77 inventors (with patents filed for the assignee):

Christopher L Drenth (52 out of 75 patents)

Michael D Rupp (37 out of 38 patents)

Christian M Lambert (23 out of 23 patents)

4. Cody A Pearce (18 out of 19 patents)

5. Christof Kruse (12 out of 16 patents)

6. Stefan Wrede (12 out of 12 patents)

7. George Ibrahim (12 out of 12 patents)

8. Kristian S Drivdahl (11 out of 12 patents)

9. George Iondov (11 out of 11 patents)

10. Anthony Lachance (8 out of 19 patents)

11. Thomas J Oothoudt (8 out of 8 patents)

12. K Shayne Drivdahl (7 out of 7 patents)

13. Robert Eugene Able (7 out of 14 patents)

14. Gordon Henderson Stewart (5 out of 14 patents)

15. Hongyan Zhang (4 out of 25 patents)

Core Competencies:

Core Sampling

Drill Bits

Wireless Data Acquisition

Drilling Tools

Fluid Pathways

High-Productivity

Diamond Impregnated

Drill Rod

Sonic Drilling

Handling Devices

Braking Devices

Latch Mechanisms

145 patents: Sort by Forward Citations

1. 12718341 - Systems and methods for improved core sample analysis (2026-08-25),

2. 11873714 - Underground drill rig and systems and methods of using same (2024-01-16),

3. 11790506 - Systems and methods for improved core sample analysis (2023-10-17),

4. 11746600 - Continuous sampling drill bit (2023-09-05),

5. 11713629 - Drill rod with internal fluid bypass porting (2023-08-01),

6. 11578552 - Reverse-circulation drilling assemblies and methods of using same (2023-02-14),

7. 11499410 - Devices, systems, and methods for wireless data acquisition during drilling operations (2022-11-15),

8. 11466529 - Core barrel head assembly with an integrated sample orientation tool and system for using same (2022-10-11),

9. 11268340 - Overshot assembly and systems and methods of using same (2022-03-08),

10. 10919726 - Wireline system and methods of using same (2021-02-16),

11. 10830013 - Core barrel head assembly with an integrated sample orientation tool and system for using same (2020-11-10),

12. 10702975 - Drilling tools having matrices with carbide-forming alloys, and methods of making and using same (2020-07-07),

13. 10633943 - Braking devices for drilling operations, and systems and methods of using same (2020-04-28),

14. 10626684 - Handling and recovery devices for tubular members and associated methods (2020-04-21),

15. 10465463 - Core barrel head assembly with an integrated sample orientation tool and system for using same (2019-11-05),

Longyear TM, Inc. is a leading technology company specializing in the development and production of innovative software solutions. With a diverse portfolio of cutting-edge products, we cater to a wide range of industries including finance, healthcare, and manufacturing. Our team of skilled professionals is committed to delivering state-of-the-art technology solutions that streamline businesses and empower organizations to thrive in the digital era.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

145 Patents

#6 in Salt Lake City, UT

#24 in Utah

#2,695 in US

#5,606 in the World

Salt Lake City, UT, United States of America

Longyear Tm, Inc.

Forward Citations = 1,109

77 inventors:

Christopher L Drenth (52 out of 75 patents)

Michael D Rupp (37 out of 38 patents)

Christian M Lambert (23 out of 23 patents)

4. Cody A Pearce (18 out of 19 patents)

5. Christof Kruse (12 out of 16 patents)

Please report any incorrect information to [email protected]

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