Inventor · disambiguated record
Frederick J. Rozario
Also filed as: ROZARIO FREDERICK J
26 granted patents·1 pending application·482 citations·filing 2001–2011
96Inventor score
Files withGM GLOBAL TECH OPERATIONS INC14GEN MOTORS CORP8ROZARIO FREDERICK J2WAKADE SHEKHAR G2CLEVER GLENN E1
Top patents by PatentIndex Score
27 records- 0198US6557518B1Cylinder deactivation apparatusGEN MOTORS CORP·Filed 2002·Granted May 6, 2003·106 cites·6 claims
- 0297US7854215B2Valve train with overload featuresGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Dec 21, 2010·43 cites·18 claims
- 0394US7367294B2Cylinder head with integral tuned exhaust manifoldGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted May 6, 2008·49 cites·20 claims
- 0493US7503296B2Cylinder deactivation apparatusGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Mar 17, 2009·17 cites·19 claims
- 0593US7249584B2Impulse charging control to extend displacement on demand rangeGM GLOBAL TECH OPERATIONS INC·Filed 2005·Granted Jul 31, 2007·33 cites·15 claims
- 0692US7472014B1Fast active fuel management reactivationGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Dec 30, 2008·23 cites·14 claims
- 0791US6584942B1Cylinder deactivation apparatus with vapor purgeGEN MOTORS CORP·Filed 2002·Granted Jul 1, 2003·42 cites·9 claims
- 0889US6505589B1Single cam three-valve engine overhead valve trainGEN MOTORS CORP·Filed 2002·Granted Jan 14, 2003·34 cites·9 claims
- 0986US7464678B2Hydraulic lash adjusterGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Dec 16, 2008·10 cites·14 claims
- 1083US6978752B2Hybrid metal-composite valve lifter guideGEN MOTORS CORP·Filed 2004·Granted Dec 27, 2005·22 cites·17 claims
- 1182US7516728B1Windage trayGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Apr 14, 2009·10 cites·17 claims
- 1280US7789054B2Twin cam phaser for dual independent cam phasingGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Sep 7, 2010·7 cites·20 claims
- 1380US6922986B2Catalytic converter early light off using cylinder deactivationGEN MOTORS CORP·Filed 2001·Granted Aug 2, 2005·24 cites·18 claims
- 1478US6782855B1Valve train and method for reducing oil flow to deactivated engine valvesGEN MOTORS CORP·Filed 2003·Granted Aug 31, 2004·16 cites·6 claims
- 1576US8234788B2Method of making titanium-based automotive engine valvesROZARIO FREDERICK J·Filed 2008·Granted Aug 7, 2012·5 cites·20 claims
- 1674US7946275B2Extending variable displacement operation through spark knock controlGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted May 24, 2011·9 cites·20 claims
- 1772US7712445B2Fuel pressure boost method and apparatusGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted May 11, 2010·6 cites·12 claims
- 1868US7966983B2Concentric camshaft with varying wall geometry and method of assemblyGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Jun 28, 2011·4 cites·20 claims
- 1968US7082918B2Oil pressure control system and method for engines with hydraulic cylinder deactivationGEN MOTORS CORP·Filed 2004·Granted Aug 1, 2006·10 cites·7 claims
- 2067US7264443B2Centrifugal water pumpGEN MOTORS CORP·Filed 2005·Granted Sep 4, 2007·7 cites·18 claims
- 2166US8534252B2Concentric camshaft with varying wall geometry and method of assemblyCLEVER GLENN E·Filed 2011·Granted Sep 17, 2013·1 cites·20 claims
- 2255US8215274B2Hydraulic control system for engine cam phasingROZARIO FREDERICK J·Filed 2008·Granted Jul 10, 2012·2 cites·12 claims
- 2351US8951466B2Method of making component shapes having non-round exterior shapesWAKADE SHEKHAR G·Filed 2009·Granted Feb 10, 2015·0 cites·15 claims
- 2449US7578335B2Powder metal mold casting for three dimensional partsGM GLOBAL TECH OPERATIONS INC·Filed 2004·Granted Aug 25, 2009·2 cites·19 claims
- 2543US7523729B2Rocker assembly with adjustable swivel footGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Apr 28, 2009·0 cites·14 claims
- 2642US8510942B2Camshaft lobe and method of making sameWAKADE SHEKHAR G·Filed 2008·Granted Aug 20, 2013·0 cites·17 claims
- 2741US2009223469A1Balance shaft drive systemGM GLOBAL TECH OPERATIONS INC·Filed 2008·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →