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Monterey, CA, United States of America

Sierra Instruments, Inc.

USPTO Granted Patents = 18

Trademarks = 19

Forward Citations = 820

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8 inventors (with patents filed for the assignee):

John George Olin (12 out of 12 patents)

David Michael Korpi (7 out of 10 patents)

John P Smitherman (3 out of 6 patents)

4. Virgil Alan Marple (1 out of 27 patents)

5. Brian Estep (1 out of 1 patent)

6. Gary A Russell (1 out of 2 patents)

7. Donald I Ross (1 out of 1 patent)

8. Norman C Ahlquist (1 out of 3 patents)

18 patents: Sort by Forward Citations

1. 10908005 - Capillary sensor tube flow meters and controllers (2021-02-02),

2. 9239257 - Mass flow meter configured with computational modeling for use with different fluids (2016-01-19),

3. 8925385 - Longitudinal resonating mode inertial mass sensing systems (2015-01-06),

4. 8563879 - Inertial microbalance filter assembly (2013-10-22),

5. 7748267 - Mass flow meter with solder/braze-flow secured spacer (2010-07-06),

6. 7197953 - Immersible thermal mass flow meter (2007-04-03),

7. 7178409 - Laminar flow meter or controller (2007-02-20),

8. 6971274 - Immersible thermal mass flow meter (2005-12-06),

9. 5880365 - Thermal mass flow sensor (1999-03-09),

10. 5879082 - Dual element temperature sensing probe using a mathematical model of (1999-03-09),

11. 5780736 - Axial thermal mass flowmeter (1998-07-14),

12. 5684246 - Method and apparatus for improved flow rate measurement and calibration (1997-11-04),

13. 5526674 - Method and apparatus for improved flow rate measurement and calibration (1996-06-18),

14. 4800754 - Wide-range, adjustable flowmeter (1989-01-31),

15. 4487062 - Mass flowmeter (1984-12-11),

Sierra Instruments, Inc. is a leading manufacturer of high-performance flow measurement and control instrumentation. With over 45 years of experience, the company offers a wide range of innovative products for various industries such as automotive, semiconductor, and oil & gas. Sierra Instruments is known for its precision and reliability, making them a trusted partner for customers worldwide.

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

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USPTO Data Jan 1 1976 - Dec 23 2025

18 Patents

#4 in Monterey, CA

#4,151 in California

#17,383 in US

#33,165 in the World

Monterey, CA, United States of America

Sierra Instruments, Inc.

Forward Citations = 820

8 inventors:

John George Olin (12 out of 12 patents)

David Michael Korpi (7 out of 10 patents)

John P Smitherman (3 out of 6 patents)

4. Virgil Alan Marple (1 out of 27 patents)

5. Brian Estep (1 out of 1 patent)

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