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Duane Bergmann — 1 Patent in 2018

ACAcd: 1 patents #1 of 4Top 25%

Big Bear Lake, CA: #1 of 5 inventorsTop 20%

California: #23,431 of 60,411 inventorsTop 40%

Overall (2018): #431,359 of 503,207Top 90%

1 Patents 2018

Issued Patents 2018

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
9945517	Portable gas filling system	Craig J. Fennessy	2018-04-17