Inventor · disambiguated record
Robert A. Frenzel
Also filed as: FRENZEL ROBERT · FRENZEL ROBERT A · FRENZEL ROBERT ANTHONY
6 granted patents·1 pending application·135 citations·filing 1989–2018
84Inventor score
Top patents by PatentIndex Score
7 records- 0190US5007330ARotary actuator and seal assembly for use thereinKEYSTONE INT·Filed 1989·Granted Apr 16, 1991·45 cites·23 claims
- 0282US8424841B2Multi-component metal seat design for ball valvesFRENZEL ROBERT ANTHONY·Filed 2010·Granted Apr 23, 2013·10 cites·15 claims
- 0378US5054374ARotary actuatorKEYSTONE INT·Filed 1990·Granted Oct 8, 1991·50 cites·9 claims
- 0464US9708886B2Control choke systemCAMERON INT CORP·Filed 2014·Granted Jul 18, 2017·3 cites·36 claims
- 0553US5388806AValve assembly having improved valve seatKEYSTONE INT·Filed 1994·Granted Feb 14, 1995·18 cites·9 claims
- 0639US5427354AValve assemblyKEYSTONE INT·Filed 1994·Granted Jun 27, 1995·9 cites·12 claims
- 0737US2020231737A1Process for producing polyurethane bootsBASF SE·Filed 2018·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →