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

Darrell Nelson — 4 Patents

Redwater, CA: #4 of 12 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Darrell Nelson has been granted 4 US patents. The first was granted in 1989 and the most recent in November 2024. Darrell Nelson ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Darrell Nelson in Redwater, AB, CA.

Patents per Year

Patents granted per year, 1989 to 2024Bar chart with a peak of 1 patents in 1989.peak 11989: 1 patents19892015: 1 patents20152021: 1 patents20212024: 1 patents2024

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
12151931 Mountable pillow decoration assembly Erica Lee 2024-11-26
11156299 Valve with expandable sleeve fitted over perforated walls of inlet and outlet channels to control flow therebetween 2021-10-26
9086305 Paddlewheel flow meter with improved servicability and improved reliability under harsh operating conditions 2015-07-21
4856771 Video simulation apparatus Greg W. Berg 1989-08-15