Ernest P. Fisher, Jr.

OE Otis Engineering: 2 patents #3 of 29Top 15%

📍 Carrollton, TX: #2 of 23 inventorsTop 9%

🗺 Texas: #147 of 2,272 inventorsTop 7%

Overall (1982): #14,560 of 81,411Top 20%

Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4362211	Locking mandrel	—	1982-12-07
4352366	Velocity operated standing valve	—	1982-10-05