Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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William J. Ellis — 4 Patents

CECascade Engineering: 1 patents #26 of 69Top 40%
Spring Park, MN: #11 of 24 inventorsTop 50%
Minnesota: #16,016 of 52,454 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
William J. Ellis has been granted 4 US patents while listed as an inventor at Cascade Engineering. The first was granted in 1996 and the most recent in October 2006. William J. Ellis ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list William J. Ellis in Spring Park, MN, US.

Patents per Year

Patents granted per year, 1996 to 2006Bar chart with a peak of 1 patents in 1996.peak 11996: 1 patents19961998: 1 patents19981999: 1 patents19992006: 1 patents2006

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7118718 Gypsum decontamination process Clark Bailey 2006-10-10
5897935 System and method for fastening insulating layer to sheet material John Peter Vander Wal, Randolph Hundley Barnard, III, Paul Berklich 1999-04-27
5830371 Reusable fluid filter and adapter Gerald F. Smith 1998-11-03
5569373 Reusable fluid filter and adapter Gerald F. Smith 1996-10-29