Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RP

Robert Pendergrass — 12 Patents

H2H2Scan: 5 patents #1 of 11Top 10%
DPDri-Eaz Products: 4 patents #6 of 22Top 30%
SESensorlink: 2 patents #1 of 6Top 20%
Ferndale, WA: #7 of 97 inventorsTop 8%
Washington: #8,631 of 76,902 inventorsTop 15%
Overall (All Time): #396,045 of 4,157,543Top 10%
12 Patents All Time
Robert Pendergrass has been granted 12 US patents while listed as an inventor at H2Scan. The first was granted in 2007 and the most recent in February 2020. Robert Pendergrass ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Robert Pendergrass in Ferndale, WA, US.

Patents per Year

Patents granted per year, 2007 to 2020Bar chart with a peak of 2 patents in 2007.peak 22007: 2 patents20072008: 1 patents20082009: 1 patents20092010: 1 patents20102011: 2 patents20112012: 1 patents20122013: 1 patents20132015: 1 patents20152016: 1 patents20162020: 1 patents2020

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
10570937 Clamp sensor systems and methods Kelly R. Hefelfinger, Nathanial Roth 2020-02-25
9500684 Line-mounted electrical energy measurement device with integrated voltage pickup and clamp Nathanial Roth, Scott Bretvick, Zhijiang GUO 2016-11-22
9089814 Systems and methods for operating and monitoring dehumidifiers Matthew James Miller, Tom Schnelle, Larry White 2015-07-28
8572994 Systems and methods for operating and monitoring dehumidifiers Matthew James Miller, Tom Schnelle, Larry White 2013-11-05
8290742 Methods and systems for determining dehumidifier performance Brandon Burton 2012-10-16
7913542 Isolated gas sensor configuration 2011-03-29
D634414 Dehumidifier housing Kevin A. Wolfe 2011-03-15
7838168 Functionally integrated hydrogen fuel cell L. Carlton Salter, Jason Redmond 2010-11-23
7565827 Thin film gas sensor configuration Carlton Salter 2009-07-28
7389672 Method and apparatus for thermal isolation of a gas sensor Timothy L. Howard, Carlton Salter 2008-06-24
7249490 Isolated gas sensor configuration 2007-07-31
7228725 Thin film gas sensor configuration Carlton Salter 2007-06-12