Ernest E. Grimsley

📍 Portsmouth, VA: #11 of 90 inventorsTop 15%

🗺 Virginia: #9,471 of 34,511 inventorsTop 30%

Overall (All Time): #1,682,072 of 4,157,543Top 45%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4463633	Portable boring and refinishing tool for end-loading ball valves	—	1984-08-07
4378661	Apparatus for holding valve element and refinishing tool	—	1983-04-05
4205495	Adapter means for a valve reseating tool	—	1980-06-03