Company Filing History:

5 out of 15

Mcevoy Oilfield Equipment Co.

patents

4 out of 1,426

Smith International, Inc.

patents

1 out of 2

Stewart & Stevenson Oiltools, Inc.

patents

4. 1 out of 601

Exxon Production Research Company

patents

Years Active: 1976-1987

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11 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4685655 - Pressure-balanced gate for split-gate valve (1987-08-11),

2. 4451047 - Seal (1984-05-29),

3. 4340204 - High pressure gate valve with preloaded, stacked, solid lubricated stem (1982-07-20),

4. 4294284 - Fail-safe, non-pressure locking gate valve (1981-10-13),

5. 4272055 - Single double backseat (1981-06-09),

6. 4053023 - Underwater well completion method and apparatus (1977-10-11),

7. 4029294 - High pressure valve (1977-06-14),

8. 3993100 - Hydraulic control system for controlling a plurality of underwater (1976-11-23),

9. 3974875 - Underwater well completion method and apparatus (1976-08-17),

10. 3971576 - Underwater well completion method and apparatus (1976-07-27),

11. 3933338 - Balanced stem fail-safe valve system (1976-01-20),

Title: The Inventor David P Herd from Houston, TX

Introduction: David P Herd is a renowned inventor based in Houston, Texas, known for his groundbreaking contributions to various fields through his innovative creations.

Latest Patents: David P Herd holds several patents in diverse industries, showcasing his versatility and creativity in inventing new solutions to existing problems.

Career Highlights: Throughout his illustrious career, David P Herd has consistently pushed the boundaries of innovation, earning him a reputation as a visionary inventor. His work has significantly impacted sectors such as technology, healthcare, and sustainability.

Collaborations: David P Herd has collaborated with leading companies, research institutions, and universities to bring his inventions to life. His ability to work with multidisciplinary teams has led to the successful development and commercialization of his patented technologies.

Conclusion: David P Herd's passion for innovation and his relentless pursuit of excellence have solidified his position as a pioneering inventor in the vibrant city of Houston, Texas.

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