Roy M Porter

📍 Deerfield, NH: #20 of 42 inventorsTop 50%

🗺 New Hampshire: #5,349 of 12,181 inventorsTop 45%

Overall (All Time): #2,231,512 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
D449183	Coin display device	Penny Porter	2001-10-16
4975019	Rubbish collecting system	Timothy R. Cate	1990-12-04