William Rupert

BI Britannia Investment: 2 patents #9 of 25Top 40%

PI Polk Investment: 1 patents #10 of 13Top 80%

📍 Bel Air, MD: #129 of 482 inventorsTop 30%

🗺 Maryland: #10,129 of 35,612 inventorsTop 30%

Overall (All Time): #1,644,950 of 4,157,543Top 40%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
D387058	Loudspeaker	Arnie Nudell, John B. Poling, Bradley M. Starobin, Mark Waker	1997-12-02
D384353	Loudspeaker	Arnie Nudell, John B. Poling, Bradley M. Starobin, Mark Waker	1997-09-30
D350135	Enclosed speaker for vehicle use	Matthew Polk	1994-08-30