RR

Ray Ridley

Overall (All Time): #1,573,352 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7474536 Audio sound quality enhancement apparatus and method 2009-01-06
6765802 Audio sound quality enhancement apparatus 2004-07-20
5406470 AC/DC converter Siegfried Kern 1995-04-11