Inventor · disambiguated record
Charles W. Derr
Also filed as: DERR CHARLES · DERR CHARLES W
4 granted patents·1 pending application·46 citations·filing 2008–2022
75Inventor score
Top patents by PatentIndex Score
5 records- 0191US7752919B2System and method of an acoustic flow meter with dual flow measurementsDANIEL MEASUREMENT & CONTROL·Filed 2008·Granted Jul 13, 2010·32 cites·15 claims
- 0272US8974114B2Temperature verification for ultrasonic flow metersDERR CHARLES W·Filed 2012·Granted Mar 10, 2015·4 cites·22 claims
- 0364US8155895B2Method and system of detecting liquid in an acoustic flow meterDERR CHARLES W·Filed 2008·Granted Apr 10, 2012·6 cites·11 claims
- 0463US8626466B2Flow meter validationHACKETT III DANIEL J·Filed 2010·Granted Jan 7, 2014·4 cites·20 claims
- 0551US2022414551A1Mobile App for Sporting Events/ConcertsDERR CHARLES·Filed 2022·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →