Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Cliff Ketcham — 8 Patents

PSParticle Measuring Systems: 5 patents #13 of 64Top 25%
SASherwood Services Ag: 2 patents #83 of 258Top 35%
VAValleylab: 1 patents #38 of 101Top 40%
Golden, CO: #179 of 1,256 inventorsTop 15%
Colorado: #5,915 of 40,980 inventorsTop 15%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Cliff Ketcham has been granted 8 US patents while listed as an inventor at Particle Measuring Systems. The first was granted in 1996 and the most recent in August 2022. Cliff Ketcham ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Cliff Ketcham in Golden, CO, US.

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
11416123 Firmware design for facility navigation, and area and location data management of particle sampling and analysis instruments Daniele Pandolfi, Matt Michaelis, Paul B. Hartigan 2022-08-16
10197487 Systems and methods for isolating condensate in a condensation particle counter Brian A. KNOLLENBERG, Stephen Pavone, Rebecca Jones Thompson 2019-02-05
9885640 Particle impactor with selective height adjustment Paul B. Hartigan, Chandrasekar Lakshmanan 2018-02-06
9810558 Pressure-based airflow sensing in particle impactor systems Thomas Bates, Paul B. Hartigan, Ronald W. Adkins 2017-11-07
9631222 Filter and blower geometry for particle sampler Paul B. Hartigan, Ronald W. Adkins 2017-04-25
7033353 Electrosurgical gas attachment Robert B. Stoddard, Arlan J. Reschke 2006-04-25
6602249 Electrosurgical gas attachment Robert B. Stoddard, Arlan J. Reschke 2003-08-05
D372086 Aspirator attachment for a surgical device Kamala J. Grasso, Kevin Leiner, Lawrence K. Pacer, Teresa Sanchez 1996-07-23