John H. Letcher, III

📍 Tulsa, OK: #626 of 2,344 inventorsTop 30%

🗺 Oklahoma: #3,359 of 12,736 inventorsTop 30%

Overall (All Time): #1,659,215 of 4,157,543Top 40%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
5253530	Method and apparatus for reflective ultrasonic imaging	—	1993-10-19
4893082	Noise suppression in magnetic resonance imaging	—	1990-01-09
4786829	Latched fedback memory finite-state-engine	—	1988-11-22