Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Leonard E. Doten — 14 Patents

Angels Camp, CA: #6 of 114 inventorsTop 6%
California: #43,920 of 386,348 inventorsTop 15%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
Leonard E. Doten has been granted 14 US patents. The first was granted in 2015 and the most recent in March 2021. Leonard E. Doten ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Leonard E. Doten in Angels Camp, CA, US.

Patents per Year

Patents granted per year, 2015 to 2021Bar chart with a peak of 4 patents in 2018.peak 42015: 2 patents20152016: 1 patents20162017: 1 patents20172018: 4 patents20182019: 2 patents20192021: 4 patents2021

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
10940343 Firefighting polymer gel preparation onboard aircraft 2021-03-09
10940344 Firefighting polymer gel preparation onboard aircraft 2021-03-09
10940345 Firefighting polymer gel preparation onboard aircraft 2021-03-09
10940342 Firefighting polymer gel preparation onboard aircraft 2021-03-09
10232203 Bucket supported polymer gel emulsion preparation system 2019-03-19
10195471 Aircraft firefighting tank with mixing 2019-02-05
10046187 Wildfire aerial fighting system utilizing lidar 2018-08-14
10046186 Modular polymer gel preparation system for aircraft 2018-08-14
9968810 Bucket supported polymer gel emulsion preparation system 2018-05-15
9908622 Onboard polymer gel preparation system for aircraft with snorkel intake 2018-03-06
9656108 Aircraft water tank polymer gel preparation system 2017-05-23
9498662 Polymer gel emulsion injection system 2016-11-22
9192797 Fire suppression gel blender and airborne delivery system 2015-11-24
9022133 Polymer mixer powered by hydrodynamic forces 2015-05-05