For the Inventor, By the Inventor

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Salt Lake City, UT, United States of America

Christensen, Inc.

USPTO Granted Patents = 48

Forward Citations = 1,923

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33 inventors (with patents filed for the assignee):

Rainer Jurgens (18 out of 35 patents)

James T Aumann (7 out of 15 patents)

David S Rowley (5 out of 5 patents)

4. Coy M Fielder (4 out of 4 patents)

5. Rainer Juergens (3 out of 8 patents)

6. Alfred Ostertag (2 out of 17 patents)

7. Craig R Hyland (2 out of 12 patents)

8. John S Davis (2 out of 4 patents)

9. Heino J Rohde (2 out of 2 patents)

10. Bruce H Walker (2 out of 3 patents)

11. Hermann Rathkamp (2 out of 2 patents)

12. Kenneth A Brock (2 out of 2 patents)

13. Cornelius Phaal (2 out of 2 patents)

14. Richard H Grappendorf (2 out of 6 patents)

15. Jacob T Chow (1 out of 6 patents)

Core Competencies:

Earth-Boring Drill Bits

Telemetry Equipment

Core Barrel

Drill Tool

Cutting Elements

Downhole Motor

Drill String

Pressure Core Barrel

Shock Absorbers

Coring Device

Rotary Drill Bit

Hydraulic Jars

48 patents: Sort by Forward Citations

1. 4537097 - Method and apparatus for manufacturing cutting elements particularly for (1985-08-27),

2. 4515227 - Nozzle placement in a diamond rotating bit including a pilot bit (1985-05-07),

3. 4512426 - Rotating bits including a plurality of types of preferential cutting (1985-04-23),

4. 4512425 - Up-drill sub for use in rotary drilling (1985-04-23),

5. 4512423 - Coring device with an improved weighted core sleeve and anti-gripping (1985-04-23),

6. 4512419 - Coring device with an improved core sleeve and anti-gripping collar (1985-04-23),

7. 4499959 - Tooth configuration for an earth boring bit (1985-02-19),

8. 4499563 - Apparatus for transmitting data from a borehole to the surface of the (1985-02-12),

9. 4471845 - Rotary drill bit (1984-09-18),

10. 4468762 - Telemetry equipment in modules (1984-08-28),

11. 4463815 - Mechanical jarring tool (1984-08-07),

12. 4460053 - Drill tool for deep wells (1984-07-17),

13. 4452324 - Rotary drill bit (1984-06-05),

14. 4452322 - Drilling device for drilling a core in deep drill holes (1984-06-05),

15. 4440246 - Cutting member for rotary drill bits (1984-04-03),

Company Overview

Christensen, Inc., based in Salt Lake City, UT, specializes in the development and manufacturing of advanced drilling technologies. The company focuses on cutting elements, rotary drill bits, and coring devices, providing innovative solutions for the drilling industry. Their expertise extends to telemetry equipment, downhole motors, drill string stabilizers, pressure core barrels, and shock absorbers, making them a key player in enhancing drilling efficiency and performance across various applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

48 Patents

#26 in Salt Lake City, UT

#86 in Utah

#7,280 in US

#14,536 in the World

Salt Lake City, UT, United States of America

Christensen, Inc.

Forward Citations = 1,923

33 inventors:

Rainer Jurgens (18 out of 35 patents)

James T Aumann (7 out of 15 patents)

David S Rowley (5 out of 5 patents)

4. Coy M Fielder (4 out of 4 patents)

5. Rainer Juergens (3 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Christensen, Inc.. Retrieved from https://idiyas.com/company/christensen

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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