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John Duffner — 1 Patent in 2021

Lexington Park, MD: #1 of 6 inventorsTop 20%

Maryland: #1,105 of 3,967 inventorsTop 30%

Overall (2021): #399,854 of 548,734Top 75%

1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
11054222	Selectable lug handgrip mount for a firearm	—	2021-07-06