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

Richard Duncan — 7 Patents

CECertainteed: 4 patents #105 of 431Top 25%
Squamish, CA: #13 of 71 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Richard Duncan has been granted 7 US patents while listed as an inventor at Certainteed. The first was granted in 2004 and the most recent in June 2019. Richard Duncan ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Richard Duncan in Squamish, BC, CA.

Patents per Year

Patents granted per year, 2004 to 2019Bar chart with a peak of 2 patents in 2011.peak 22004: 1 patents20042006: 1 patents20062007: 1 patents20072010: 1 patents20102011: 2 patents20112019: 1 patents2019

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
D852010 Cutting board Djordje Banovic 2019-06-25
8053049 Packaging for insulation products John O. Ruid, Jon Michael Brooks 2011-11-08
7921619 Insulation batt having integral baffle vent R. Allan Snyder 2011-04-12
7765750 Reconfigurable attic air vent 2010-08-03
7302776 Baffled attic vent Dustin Ciepliski 2007-12-04
6997409 Automatic speed adjusting fishing reel Steven W. Bledsoe 2006-02-14
6672526 Automatic two-speed transmission for a fishing reel Steven W. Bledsoe 2004-01-06