Inventor · disambiguated record
John R. Holstrom
Also filed as: HOLSTROM JOHN R
3 granted patents·36 citations·filing 1982–2009
70Inventor score
Top patents by PatentIndex Score
3 records- 0156US4428242AFlowmeter using twisting torqueAMSTED IND INC·Filed 1982·Granted Jan 31, 1984·17 cites·1 claims
- 0240USD601663SBall valveVAL MATIC VALVE & MFG CORP·Filed 2009·Granted Oct 6, 2009·5 cites·1 claims
- 0340US4708160APost assembly for buried valve having an above ground actuatorAMSTED IND INC·Filed 1986·Granted Nov 24, 1987·14 cites·10 claims
Join the waitlist — get patent alerts
Get an alert when John R. Holstrom files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →