JH

John R. Holstrom

AI Amsted Industries Incorporated: 2 patents #58 of 219Top 30%
VM Val-Matic Valve & Manufacturing: 1 patents #4 of 8Top 50%
📍 Hillsboro, IL: #21 of 89 inventorsTop 25%
🗺 Illinois: #26,653 of 84,256 inventorsTop 35%
Overall (All Time): #1,577,990 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
D601663 Ball valve 2009-10-06
4708160 Post assembly for buried valve having an above ground actuator Steve M. Sharp, Lorand H. Gain, Jr., John V. Ballun 1987-11-24
4428242 Flowmeter using twisting torque 1984-01-31