Ronald L. Risinger

OE Otis Engineering: 1 patents #122 of 228Top 55%

📍 Dallas, TX: #4,358 of 7,543 inventorsTop 60%

🗺 Texas: #73,555 of 125,132 inventorsTop 60%

Overall (All Time): #4,078,604 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4359094	Shear relief valve	—	1982-11-16