For the Inventor, By the Inventor

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New York, NY, United States of America

Nl Industries

USPTO Granted Patents = 319

CIPO Patents = 3

Trademarks = 42

Forward Citations = 6,748

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279 inventors (with patents filed for the assignee):

Claude M Finlayson (15 out of 15 patents)

Roy F House (12 out of 48 patents)

Lonnie D Hoover (12 out of 13 patents)

4. John D Barr (11 out of 40 patents)

5. Thaddeus F Kroplinski (11 out of 11 patents)

6. George S Foerster (9 out of 9 patents)

7. Douglas W Nayler (9 out of 9 patents)

8. Daniel F Herman (8 out of 9 patents)

9. Melvin Brauer (8 out of 31 patents)

10. M Vikram Rao (7 out of 28 patents)

11. John E Fontenot (7 out of 8 patents)

12. Michael King Russell (6 out of 29 patents)

13. George E Stridde (6 out of 6 patents)

14. Joseph A Rahm (6 out of 6 patents)

15. Wilbur S Mardis (6 out of 6 patents)

Core Competencies:

Drilling Fluids

Borehole Monitoring

Formation Density Logging

Drill Bits

Fluid Loss Control

Logging Apparatus

Acoustic Logging

Hydrocarbon Testing

Blowout Preventers

Rotary Motion

Electrical Circuit Support

Polymer Compositions

319 patents: Sort by Forward Citations

1. 5248342 - Methods for processing battery waste and other lead-contaminated (1993-09-28),

2. 5205952 - Methods for controlling airborne dissemination of lead and (1993-04-27),

3. 5173277 - Methods for processing battery waste and other lead-contaminated (1992-12-22),

4. 4900159 - High shear mixing apparatus (1990-02-13),

5. 4867418 - Apparatus for increasing the load handling capability of support and (1989-09-19),

6. 4855870 - Assemblies for supporting electrical circuit boards within tubes (1989-08-08),

7. 4829176 - Logging apparatus and method (1989-05-09),

8. 4810459 - Method and apparatus for determining true formation porosity from (1989-03-07),

9. 4804051 - Method of predicting and controlling the drilling trajectory in (1989-02-14),

10. 4791797 - Density neutron self-consistent caliper (1988-12-20),

11. 4790393 - Valve for drilling fluid telemetry systems (1988-12-13),

12. 4785247 - Drill stem logging with electromagnetic waves and (1988-11-15),

13. 4770387 - Variable ram seal for blowout preventers (1988-09-13),

14. 4759256 - Tensioner recoil control apparatus (1988-07-26),

15. 4758371 - Process and composition for removal of mercaptans from gas streams (1988-07-19),

Company Overview

Nl Industries, headquartered in New York, NY, specializes in advanced drilling technology, focusing on enhancing the efficiency and safety of drilling operations. The company develops a range of products and solutions, including drilling fluids, borehole monitoring systems, and formation density logging tools. Their expertise extends to fluid loss control, logging apparatus, and acoustic logging, all aimed at optimizing hydrocarbon testing and extraction processes. Nl Industries is committed to innovation in the drilling sector, providing critical support to energy exploration and production.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

319 Patents

#53 in New York, NY

#93 in New York

#1,383 in US

#2,824 in the World

New York, NY, United States of America

Nl Industries

Forward Citations = 6,748

279 inventors:

Claude M Finlayson (15 out of 15 patents)

Roy F House (12 out of 48 patents)

Lonnie D Hoover (12 out of 13 patents)

4. John D Barr (11 out of 40 patents)

5. Thaddeus F Kroplinski (11 out of 11 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nl Industries. Retrieved from https://idiyas.com/company/nl-industries

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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