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USPTO Patent Rankings Data through Dec 31, 2025
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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.

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