Inventor · disambiguated record
Rollin C. Christianson
Also filed as: CHRISTIANSON ROLLIN · CHRISTIANSON ROLLIN C
5 granted patents·199 citations·filing 1990–2007
84Inventor score
Top patents by PatentIndex Score
5 records- 0192US6152172AHall effect valve spool position sensorHUSCO INT INC·Filed 1999·Granted Nov 28, 2000·62 cites·14 claims
- 0290US7387061B2Control apparatus for hydraulic cylinderHUSCO INT INC·Filed 2006·Granted Jun 17, 2008·33 cites·6 claims
- 0385US5020774AVariable orifice flow regulatorNASA·Filed 1990·Granted Jun 4, 1991·59 cites·20 claims
- 0484US7969146B2Displacement measurement devicePARKER HANNIFIN CORP·Filed 2007·Granted Jun 28, 2011·14 cites·19 claims
- 0567US5251663AHigh-temperature, high-pressure oxygen metering valveUS ARMY·Filed 1992·Granted Oct 12, 1993·31 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Rollin C. Christianson 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 →