Forward Citations = 198

Loading Chart...

9 inventors (with patents filed for the assignee):

Kenneth L Girvin (6 out of 16 patents)

Richard K DeFreez (4 out of 15 patents)

Frederic C Schildmeyer (2 out of 5 patents)

4. Louis J Petralli (2 out of 2 patents)

5. Brian J Shahan (2 out of 2 patents)

6. Holger T Sommer (1 out of 2 patents)

7. Warren J Harwick (1 out of 1 patent)

8. D John Hunt (1 out of 1 patent)

9. Valey F Kamalov (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. 5946093 - Particle detection system and method employing an upconversion laser (1999-08-31),

2. 5903347 - Particle counter employing a chromium based solid-state laser with an (1999-05-11),

3. 5872622 - Condensation nucleus counter having vapor stabilization and working (1999-02-16),

4. 5864399 - Method for counting particles in a fluent stream (1999-01-26),

5. 5684585 - Optical particle counter employing a field-calibrator (1997-11-04),

6. 5675405 - Condensation nucleus counter employing supersaturation by thermal (1997-10-07),

7. 5664599 - Flow controller for a particle sensor (1997-09-09),

8. 5642193 - Particle counter employing a solid-state laser with an intracavity view (1997-06-24),

9. 5565984 - Re-entrant illumination system for particle measuring device (1996-10-15),

10. 5438420 - Monitoring of fluid contamination level wherein the light energy is (1995-08-01),

11. 5084629 - Split flow uniform multisensor detection (1992-01-28),

12. 5011286 - Multisensor particle counter utilizing a single energy source (1991-04-30),

Company Overview

Met One, Inc., based in Grants Pass, Oregon, specializes in the development and manufacturing of high-quality air quality monitoring instruments and environmental measurement solutions. The company focuses on providing advanced technologies for particulate matter measurement, meteorological data collection, and other environmental monitoring applications. With a commitment to innovation, Met One serves a diverse range of industries, including environmental research, industrial hygiene, and regulatory compliance, ensuring accurate and reliable data for its clients.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

12 Patents

#3 in Grants Pass, OR

#264 in Oregon

#25,540 in US

#48,129 in the World

Grants Pass, OR, United States of America

Met One, Inc.

Forward Citations = 198

9 inventors:

Kenneth L Girvin (6 out of 16 patents)

Richard K DeFreez (4 out of 15 patents)

Frederic C Schildmeyer (2 out of 5 patents)

4. Louis J Petralli (2 out of 2 patents)

5. Brian J Shahan (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Met One, Inc.. Retrieved from https://idiyas.com/company/met-one

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]