John L. Royster

📍 Salt Lake City, UT: #1,456 of 4,590 inventorsTop 35%

🗺 Utah: #6,041 of 19,430 inventorsTop 35%

Overall (All Time): #1,662,873 of 4,157,543Top 40%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
5164534	Secondary recoil absorption mechanism for use on a firearm	—	1992-11-17
4938116	Recoil system for weapons with a reciprocating breech block	—	1990-07-03
4543744	Plant growing chamber	—	1985-10-01