Roger P. Neilsen

📍 Berkeley, CA: #1,792 of 3,731 inventorsTop 50%

🗺 California: #185,134 of 386,348 inventorsTop 50%

Overall (All Time): #2,373,086 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4220112	Wheel mounted alarm mechanism	—	1980-09-02
4193582	Jack for lifting objects	—	1980-03-18