Inventor · disambiguated record
Philip C. Pelfrey
Also filed as: PELFREY PHILIP · PELFREY PHILIP C
11 granted patents·2 pending applications·223 citations·filing 1998–2018
90Inventor score
Top patents by PatentIndex Score
13 records- 0197US7445213B1Stepped labyrinth sealFLORIDA TURBINE TECH INC·Filed 2006·Granted Nov 4, 2008·90 cites·9 claims
- 0296US7431504B1High temperature damper for a roller bearingFLORIDA TURBINE TECH INC·Filed 2006·Granted Oct 7, 2008·36 cites·13 claims
- 0391US7896550B1Hydrodynamic liquid metal bearingFLORIDA TURBINE TECH INC·Filed 2007·Granted Mar 1, 2011·13 cites·13 claims
- 0481US7018079B1Aircraft escape slide lighting systemDME CORP·Filed 2002·Granted Mar 28, 2006·34 cites·18 claims
- 0570US7544039B1Dual spool shaft with intershaft sealFLORIDA TURBINE TECH INC·Filed 2006·Granted Jun 9, 2009·12 cites·19 claims
- 0663US10731605B1Monopropellant cascade rocket engineDEMSKI BRANDON A·Filed 2018·Granted Aug 4, 2020·2 cites·9 claims
- 0760US8333544B1Card seal for a turbomachinePELFREY PHILIP C·Filed 2009·Granted Dec 18, 2012·7 cites·16 claims
- 0857US6053636AHydrostatic bearing with compensatory fluid injectionUNITED TECHNOLOGIES CORP·Filed 1998·Granted Apr 25, 2000·27 cites·27 claims
- 0950US8613189B1Centrifugal impeller for a rocket engine having high and low pressure outletsPELFREY PHILIP C·Filed 2009·Granted Dec 24, 2013·2 cites·4 claims
- 1043US8596960B1Turbopump with a tapered hydrostatic bearingPELFREY PHILIP C·Filed 2010·Granted Dec 3, 2013·0 cites·8 claims
- 1142US10920714B2Stable hybrid rocket technologyEXQUADRUM INC·Filed 2014·Granted Feb 16, 2021·0 cites·10 claims
- 1239US2019003423A1Dual-expander short-length aerospike engineEXQUADRUM INC·Filed 2017·Application pending·0 cites
- 1338US2010326043A1Expander cycle rocket engine nozzleFLORIDA TURBINE TECH INC·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →