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

Carl Keller — 3 Patents in 2021

Danville, CA: #20 of 194 inventorsTop 15%
California: #8,414 of 66,859 inventorsTop 15%
Overall (2021): #88,530 of 548,734Top 20%
3 Patents 2021

Issued Patents 2021

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11143001 Optimal screened subsurface well design 2021-10-12
11085262 Method of installation of a flexible borehole liner without eversion 2021-08-10
10954759 Method for increasing pressure in a flexible liner with a weighted wellhead 2021-03-23