Roy Howarth

MT Mechanical Technology: 2 patents #27 of 79Top 35%

📍 Clifton Park, NY: #664 of 1,126 inventorsTop 60%

🗺 New York: #48,759 of 115,490 inventorsTop 45%

Overall (All Time): #2,347,651 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4582328	Double acting stirling engine piston ring	—	1986-04-15
4422649	Stirling engine piston ring	—	1983-12-27