% Expired Patents = 42.9

Trademarks = 1

Forward Citations = 34

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6 inventors (with patents filed for the assignee):

Thomas L Pottberg (3 out of 3 patents)

Seung-Ho Hong (3 out of 3 patents)

Richard K DeFreez (2 out of 15 patents)

4. Michael A Potter (2 out of 2 patents)

5. Gerald A Szpak (1 out of 3 patents)

6. Matthew Heverly (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 10365199 - Twin-spot light absorbing particulate monitoring instrument (2019-07-30),

2. 10281371 - Sequential air sampler with filter cassette magazine (2019-05-07),

3. 9651038 - Pulsation suppressing air flow system for an air sampling instrument (2017-05-16),

4. 9157871 - Method and apparatus to enhance collection of particles in particulate mass measurement device (2015-10-13),

5. 8443682 - Asymmetric-cup anemometer (2013-05-21),

6. 8284398 - Nephelometer with concentration-modulated sample flow (2012-10-09),

7. 7199369 - Low threshold level radiation detector (2007-04-03),

Company Overview

Met One Instruments, Inc. is a leading manufacturer of high-quality, reliable environmental monitoring solutions. With over 30 years of experience, we provide instruments for monitoring air quality, particulate matter, and weather conditions. Our products are used in a wide range of industries including government agencies, research institutions, and industrial facilities. From portable air quality monitors to sophisticated weather stations, Met One Instruments, Inc. offers a diverse range of products to meet our customers' needs.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

7 Patents

#6 in Grants Pass, OR

#431 in Oregon

#39,879 in US

Grants Pass, OR, United States of America

Met One Instruments, Inc.

Forward Citations = 34

6 inventors:

Thomas L Pottberg (3 out of 3 patents)

Seung-Ho Hong (3 out of 3 patents)

Richard K DeFreez (2 out of 15 patents)

4. Michael A Potter (2 out of 2 patents)

5. Gerald A Szpak (1 out of 3 patents)

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

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]