Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert D. Claassen — 3 Patents

MTMasterflo Technology: 2 patents #1 of 4Top 25%
Tigard, OR: #250 of 696 inventorsTop 40%
Oregon: #10,287 of 28,073 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Robert D. Claassen has been granted 3 US patents while listed as an inventor at Masterflo Technology. The first was granted in 1988 and the most recent in November 1998. Robert D. Claassen ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Robert D. Claassen in Tigard, OR, US.

Patents per Year

Patents granted per year, 1988 to 1998Bar chart with a peak of 1 patents in 1988.peak 11988: 1 patents19881997: 1 patents19971998: 1 patents1998

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5833226 In-line deserter and integrator apparatus and method 1998-11-10
5597156 Modular folded sheet conveyor system 1997-01-28
4741414 Lift apparatus for pallets 1988-05-03