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Forward Citations = 195

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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),

Met One, Inc. is a leading provider of environmental monitoring solutions for industries and governments worldwide. With over 30 years of experience, we specialize in precision instruments for monitoring air quality, weather conditions, and particle contamination. Our products are trusted by scientists, researchers, and engineers to deliver accurate and reliable data for critical decision-making. Visit our website to learn more about our innovative solutions and services.

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USPTO Data Jan 1 1976 - Dec 9 2025

12 Patents

#3 in Grants Pass, OR

#259 in Oregon

#24,779 in US

#46,665 in the World

Grants Pass, OR, United States of America

Met One, Inc.