For the Inventor, By the Inventor

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Boulder, CO, United States of America

Particle Measuring Systems, Inc.

USPTO Granted Patents = 94

% Expired Patents = 2.1

EPO Patents = 14

Trademarks = 23

Forward Citations = 3,604

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73 inventors (with patents filed for the assignee):

Brian A Knollenberg (24 out of 22 patents)

Daniel Rodier (17 out of 15 patents)

Robert G Knollenberg (14 out of 15 patents)

4. Davide Recchia (11 out of 9 patents)

5. Dwight A Sehler (11 out of 11 patents)

6. Thomas A Bates (10 out of 10 patents)

7. Ronald W Adkins (10 out of 6 patents)

8. Todd A Cerni (8 out of 8 patents)

9. Matt Michaelis (7 out of 7 patents)

10. Brett Haley (7 out of 7 patents)

11. John R Mitchell (7 out of 7 patents)

12. Giovanni Scialo (7 out of 5 patents)

13. Cliff Ketcham (5 out of 9 patents)

14. James M Lumpkin (5 out of 5 patents)

15. Scott Waisanen (5 out of 5 patents)

Core Competencies:

Particle Detection

Aerosol Measurement

Filtration Systems

Nanoparticle Detection

Robotic Control

Optical Particle Sensors

Cleanroom Environments

Calibration Verification

Condensation Particle Counters

Fluid Manifolds

Slurry Quality Control

Microbial Air Samplers

94 patents: Sort by Forward Citations

1. 12461010 - Systems and methods for reducing false positive particle detection events in a particle detector (2025-11-04),

2. 12422341 - Compact intelligent aerosol and fluid manifold (2025-09-23),

3. 12399114 - Modular particle counter with docking station (2025-08-26),

4. 12399102 - System and method for particles measurement (2025-08-26),

5. 12399089 - Liquid impinger sampling systems and methods (2025-08-26),

6. 12352671 - Particle sampling systems and methods for robotic controlled manufacturing barrier systems (2025-07-08),

7. 12326393 - Enhanced dual-pass and multi-pass particle detection (2025-06-10),

8. 12313514 - Detection scheme for particle size and concentration measurement (2025-05-27),

9. 12276592 - Particle detection via scattered light combined with incident light (2025-04-14),

10. 12270817 - Robotic control for aseptic processing (2025-04-08),

11. 12231890 - User access-restrictive systems and methods for operating particle sampling devices (2025-02-18),

12. 12130222 - Condensation particle counters and methods of use (2024-10-29),

13. 11988593 - Advanced systems and methods for interferometric particle detection and detection of particles having small size dimensions (2024-05-21),

14. 11946852 - Particle detection systems and methods for on-axis particle detection and/or differential detection (2024-04-02),

15. 11927509 - Particle sampling systems and methods for robotic controlled manufacturing barrier systems (2024-03-12),

Particle Measuring Systems, Inc. is a leading provider of advanced particle detection technologies, specializing in aerosol measurement and filtration systems. Based in Boulder, Colorado, the company focuses on developing innovative solutions for cleanroom environments, ensuring optimal air quality and contamination control. Their expertise extends to nanoparticle detection and robotic control, utilizing optical particle sensors to enhance precision in various applications. The organization is committed to delivering reliable calibration verification methods to support industries requiring stringent cleanliness standards.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

Particle Measuring Systems, Inc.

94 Patents

#16 in Boulder, CO

#80 in Colorado

#3,978 in US

#8,185 in the World

Boulder, CO, United States of America

Particle Measuring Systems, Inc.

Forward Citations = 3,604

73 inventors:

Brian A Knollenberg (24 out of 22 patents)

Daniel Rodier (17 out of 15 patents)

Robert G Knollenberg (14 out of 15 patents)

4. Davide Recchia (11 out of 9 patents)

5. Dwight A Sehler (11 out of 11 patents)

Please report any incorrect information to [email protected]

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