For the Inventor, By the Inventor

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Houston, TX, United States of America

Precision General, Inc.

USPTO Granted Patents = 16

CIPO Patents = 1

Trademarks = 2

Forward Citations = 204

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7 inventors (with patents filed for the assignee):

Spencer M Nimberger (15 out of 104 patents)

Robert L Ward (5 out of 16 patents)

Paul V Allen (2 out of 3 patents)

4. Dale Schafer (1 out of 1 patent)

5. Royce Miller (1 out of 1 patent)

6. Arnold Czimny (1 out of 1 patent)

7. Alan F Chou (1 out of 1 patent)

16 patents: Sort by Forward Citations

1. 5325731 - Fluid flow and mounting system for a sampling pump (1994-07-05),

2. 5320133 - Flow system disconnect and method (1994-06-14),

3. 5316351 - Hose swivel (1994-05-31),

4. 5313975 - Gas lockout system (1994-05-24),

5. 5257653 - Ejector pull away system and apparatus (1993-11-02),

6. 5228474 - Flow system disconnect and method (1993-07-20),

7. 5215120 - Apparatus and method for reducing valve emissions (1993-06-01),

8. 5191801 - Fluid sampling pump (1993-03-09),

9. 5173579 - Differential pressure switch including a vertical diaphragm, a reed (1992-12-22),

10. 5109712 - Portable sample cylinder with reduced seal permeability (1992-05-05),

11. 5074154 - Fluid sampling pump (1991-12-24),

12. 4974308 - Method for interconnecting an instrument manifold with an orifice plate (1990-12-04),

13. 4930361 - Portable piston style sample cylinder (1990-06-05),

14. 4920626 - Stabilized connector flange for interconnecting an instrument manifold (1990-05-01),

15. 4862754 - Portable piston style sample cylinder (1989-09-05),

Precision General, Inc. is a leading construction company specializing in high-quality commercial and residential construction projects. With over 20 years of experience, we have built a reputation for excellence in delivering projects on time and within budget. Our team of skilled professionals and tradespeople work tirelessly to exceed our clients' expectations and provide the highest level of craftsmanship. Contact us today to discuss your construction needs and experience the Precision General difference.

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USPTO Data Jan 1 1976 - Sep 15 2026

16 Patents

#325 in Houston, TX

#1,211 in Texas

#19,875 in US

#37,723 in the World

Houston, TX, United States of America

Precision General, Inc.

Forward Citations = 204

7 inventors:

Spencer M Nimberger (15 out of 104 patents)

Robert L Ward (5 out of 16 patents)

Paul V Allen (2 out of 3 patents)

4. Dale Schafer (1 out of 1 patent)

5. Royce Miller (1 out of 1 patent)

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