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USPTO Patent Rankings Data through Dec 31, 2025
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Darrell Nelson — 1 Patent in 2021

Redwater, CA: #1 of 2 inventorsTop 50%
Overall (2021): #481,273 of 548,734Top 90%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11156299 Valve with expandable sleeve fitted over perforated walls of inlet and outlet channels to control flow therebetween 2021-10-26