RR

Richard S. Robertson

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Talleyville, DE: #3 of 4 inventorsTop 75%
🗺 Delaware: #4,431 of 7,163 inventorsTop 65%
Overall (All Time): #3,416,611 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7044171 Exterior ductwork system James W. Betley, Keith S. Betley, Dennis L. Horn, Ralph Raymond Delaney, Larry C. Johnson +1 more 2006-05-16