For the Inventor, By the Inventor

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Houston, TX, United States of America

Valco Instruments Company, Inc.

USPTO Granted Patents = 33

CIPO Patents = 5

EPO Patents = 14

Trademarks = 26

Forward Citations = 214

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16 inventors (with patents filed for the assignee):

Stanley D Stearns (28 out of 54 patents)

Huamin Cai (13 out of 15 patents)

Chris S Cowles (7 out of 8 patents)

4. Ales Plistil (6 out of 7 patents)

5. H Max Loy, Jr (5 out of 11 patents)

6. Chris Bishop (4 out of 4 patents)

7. Robert Simpson (4 out of 4 patents)

8. Dale Ashworth (4 out of 4 patents)

9. Douglas Dailey (4 out of 4 patents)

10. Martin Paul Brisbin (3 out of 3 patents)

11. Wayne E Wentworth (3 out of 11 patents)

12. David Miller (1 out of 1 patent)

13. L Harvey Barclay (1 out of 2 patents)

14. Herbert Max Loy, Jr (1 out of 1 patent)

15. Frank A Stearns (1 out of 2 patents)

33 patents: Sort by Forward Citations

1. 11519888 - System and valve for liquid chromatography (2022-12-06),

2. 11119076 - System and valve for liquid chromatography (2021-09-14),

3. 11041581 - Zero dead volume fitting assembly (2021-06-22),

4. 11002262 - Pump for liquid chromatography with pressure sensor (2021-05-11),

5. 10883633 - Zero dead volume fitting assembly (2021-01-05),

6. 10502721 - Chromatographic system temperature control system (2019-12-10),

7. 10481137 - Chromatographic system temperature control system (2019-11-19),

8. 10481136 - Chromatographic system temperature control system (2019-11-19),

9. 10324069 - Chromatographic system temperature control system (2019-06-18),

10. 10174871 - Zero dead volume fitting assembly (2019-01-08),

11. 9822772 - Pump and injector for liquid chromatography (2017-11-21),

12. 9546646 - Pump and injector for liquid chromatography (2017-01-17),

13. 9539524 - Pump and injector for liquid chromatography (2017-01-10),

14. 9234608 - Heated rotary valve for chromotography (2016-01-12),

15. 9188570 - Photo ionization detector for gas chromatography having at least two separately ionizing sources (2015-11-17),

Valco Instruments Company, Inc. is a leading manufacturer of precision fluid control systems and instrumentation. Established in 1968, the company is globally recognized for its high-quality valves, fittings, and related accessories. Valco Instruments serves a wide range of industries including pharmaceutical, chemical, petrochemical, and environmental. With a commitment to delivering innovative solutions, Valco Instruments has become a trusted partner for laboratory researchers, engineers, and scientists worldwide.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

33 Patents

#157 in Houston, TX

#560 in Texas

#9,941 in US

#19,537 in the World

Houston, TX, United States of America

Valco Instruments Company, Inc.

Forward Citations = 214

16 inventors:

Stanley D Stearns (28 out of 54 patents)

Huamin Cai (13 out of 15 patents)

Chris S Cowles (7 out of 8 patents)

4. Ales Plistil (6 out of 7 patents)

5. H Max Loy, Jr (5 out of 11 patents)

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