JM

John Mayhew

Google: 1 patents #14 of 94Top 15%
📍 Roanoke, VA: #2 of 22 inventorsTop 10%
🗺 Virginia: #58 of 1,067 inventorsTop 6%
Overall (1989): #23,694 of 140,708Top 20%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4840068 Pipe pressure sensor — 1989-06-20
4798365 Throttling gasket insert for use with knife gate valve — 1989-01-17