For the Inventor, By the Inventor

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Houston, TX, United States of America

Nl Sperry Sun, Inc.

USPTO Granted Patents = 12

Forward Citations = 270

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14 inventors (with patents filed for the assignee):

Anthony W Russell (5 out of 21 patents)

Michael King Russell (4 out of 29 patents)

Hwa-shan Ho (1 out of 11 patents)

4. Kenneth S Evans (1 out of 3 patents)

5. Steven W Powell (1 out of 2 patents)

6. Elbert N Shawhan (1 out of 3 patents)

7. Joshua M Jackson (1 out of 6 patents)

8. Miles A Smither (1 out of 16 patents)

9. H Eugene Sharp (1 out of 3 patents)

10. Vernon E Koval (1 out of 1 patent)

11. James G Stockton (1 out of 2 patents)

12. Peter J Marlow (1 out of 1 patent)

13. Manmohan S Kalsi (1 out of 1 patent)

14. Colin Arlott (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. 4848144 - Method of predicting the torque and drag in directional wells (1989-07-18),

2. 4819336 - Method of determining the orientation of a surveying instrument in a (1989-04-11),

3. 4810105 - Bearing sleeves (1989-03-07),

4. 4802150 - Mud pressure control system with magnetic torque transfer (1989-01-31),

5. 4794336 - Apparatus for surveying a borehole comprising a magnetic measurement (1988-12-27),

6. 4636995 - Mud pressure control system (1987-01-13),

7. 4562559 - Borehole acoustic telemetry system with phase shifted signal (1985-12-31),

8. 4535429 - Apparatus for signalling within a borehole while drilling (1985-08-13),

9. 4507958 - Surveying of a borehole for position determination (1985-04-02),

10. 4399877 - Continuous borehole telemetry system and method (1983-08-23),

11. 4393598 - Borehole tool (1983-07-19),

12. 4390975 - Data transmission in a drill string (1983-06-28),

NL Sperry Sun, Inc. is a leading provider of solar energy solutions for residential and commercial customers. With over a decade of experience in the industry, we specialize in designing and installing high-quality solar panels to help our clients reduce their carbon footprint and save on electricity costs. Our team of experts is committed to delivering exceptional service and customized solutions to meet the unique needs of each customer.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

12 Patents

#415 in Houston, TX

#1,589 in Texas

#25,526 in US

#48,090 in the World

Houston, TX, United States of America

Nl Sperry Sun, Inc.

Forward Citations = 270

14 inventors:

Anthony W Russell (5 out of 21 patents)

Michael King Russell (4 out of 29 patents)

Hwa-shan Ho (1 out of 11 patents)

4. Kenneth S Evans (1 out of 3 patents)

5. Steven W Powell (1 out of 2 patents)

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