Inventor · disambiguated record
John Zajac
Also filed as: ZAJAC JOHN · ZAJAC JOHN P
51 granted patents·10 pending applications·1,117 citations·filing 1978–2014
99Inventor score
Top patents by PatentIndex Score
61 records- 0198US7328674B2Rotary valve system and engine using the sameZAJAC OPTIMUM OUTPUT MOTORS IN·Filed 2006·Granted Feb 12, 2008·33 cites·17 claims
- 0297US7325520B2Rotary valve system and engine using the sameZAJAC OPTIMUM OUTPUT MOTORS IN·Filed 2006·Granted Feb 5, 2008·33 cites·10 claims
- 0396US6805139B1Systems and methods for photoresist strip and residue treatment in integrated circuit manufacturingMATTSON TECH INC·Filed 2000·Granted Oct 19, 2004·138 cites·28 claims
- 0496US5915410APneumatically operated positive shutoff throttle valveFiled 1996·Granted Jun 29, 1999·86 cites·26 claims
- 0595US7481189B2Internal combustion engine and methodZAJAC OPTIMUM OUTPUT MOTORS IN·Filed 2006·Granted Jan 27, 2009·17 cites·33 claims
- 0695US7415947B2Internal combustion engine and methodZAJAC OPTIMUM OUTPUT MOTORS IN·Filed 2006·Granted Aug 26, 2008·10 cites·22 claims
- 0795US4342901APlasma etching electrodeEATON CORP·Filed 1980·Granted Aug 3, 1982·48 cites·9 claims
- 0894US7255082B2Rotary valve system and engine using the sameZAJAC OPTIMUM OUTPUT MOTORS IN·Filed 2006·Granted Aug 14, 2007·11 cites·15 claims
- 0994US4230515APlasma etching apparatusDAVIS & WILDER INC·Filed 1978·Granted Oct 28, 1980·53 cites·9 claims
- 1093US7748352B2Internal combustion engine and method with improved combustion chamberZAJAC OPTIMUM OUTPUT MOTORS IN·Filed 2006·Granted Jul 6, 2010·8 cites·11 claims
- 1193US7421995B2Rotary valve system and engine using the sameZAJAC OPTIMUM OUTPUT MOTORS IN·Filed 2006·Granted Sep 9, 2008·9 cites·25 claims
- 1290US7552703B2Internal combustion engine and methodZAJAC OPTIMUM OUTPUT MOTORS IN·Filed 2006·Granted Jun 30, 2009·6 cites·11 claims
- 1390US7487748B2Internal combustion engine and methodZAJAC OPTIMUM OUTPUT MOTORS IN·Filed 2006·Granted Feb 10, 2009·6 cites·21 claims
- 1488US7418929B2Internal combustion engine and methodZAJAC OPTIMUM OUTPUT MOTORS IN·Filed 2006·Granted Sep 2, 2008·5 cites·18 claims
- 1587US4632624AVacuum load lock apparatusTEGAL CORP·Filed 1984·Granted Dec 30, 1986·64 cites·9 claims
- 1687US4307283APlasma etching apparatus II-conical-shaped projectionEATON CORP·Filed 1979·Granted Dec 22, 1981·22 cites·6 claims
- 1785US7424871B2Internal combustion engine and methodZAJAC OPTIMUM OUTPUT MOTORS IN·Filed 2006·Granted Sep 16, 2008·4 cites·16 claims
- 1884US7232767B2Slotted electrostatic shield modification for improved etch and CVD process uniformityMATTSON TECH INC·Filed 2004·Granted Jun 19, 2007·25 cites·20 claims
- 1984US6706142B2Systems and methods for enhancing plasma processing of a semiconductor substrateMATTSON TECH INC·Filed 2001·Granted Mar 16, 2004·35 cites·22 claims
- 2083US4255230APlasma etching processEATON CORP·Filed 1980·Granted Mar 10, 1981·49 cites·13 claims
- 2182US7658169B2Internal combustion engine and method with improved combustion chamberZAJAC OPTIMUM OUTPUT MOTORS IN·Filed 2006·Granted Feb 9, 2010·3 cites·32 claims
- 2282US7415948B2Internal combustion engine and methodZAJAC OPTIMUM OUTPUT MOTORS IN·Filed 2006·Granted Aug 26, 2008·3 cites·19 claims
- 2382US4958658AMass flow stabilizedTEGAL CORP·Filed 1987·Granted Sep 25, 1990·47 cites·2 claims
- 2482US4431477APlasma etching with nitrous oxide and fluoro compound gas mixtureMATHESON GAS PROD INC·Filed 1983·Granted Feb 14, 1984·47 cites·19 claims
- 2580US6838387B1Fast etching system and processFiled 2001·Granted Jan 4, 2005·23 cites·2 claims
- 2680US4857136AReactor monitoring system and methodZAJAC JOHN·Filed 1988·Granted Aug 15, 1989·52 cites·16 claims
- 2777US7757644B2Internal combustion engine and method with improved combustion chamberZAJAC OPTIMUM OUTPUT MOTORS IN·Filed 2006·Granted Jul 20, 2010·2 cites·23 claims
- 2877US7434551B2Constant temperature internal combustion engine and methodZAJAC OPTIMUM OUTPUT MOTORS IN·Filed 2007·Granted Oct 14, 2008·16 cites·29 claims
- 2977US4392915AWafer support systemEATON CORP·Filed 1982·Granted Jul 12, 1983·41 cites·13 claims
- 3076US7748351B2Internal combustion engine and method with improved combustion chamberZAJAC OPTIMUM OUTPUT MOTORS IN·Filed 2006·Granted Jul 6, 2010·2 cites·20 claims
- 3176US4801241AModular article processing machine and method of article handling thereinTEGAL CORP·Filed 1984·Granted Jan 31, 1989·42 cites·2 claims
- 3275US7905204B2Internal combustion engine and method with improved combustion chamberZAJAC OPTIMUM OUTPUT MOTORS INC·Filed 2006·Granted Mar 15, 2011·2 cites·17 claims
- 3375US4845053AFlame ashing process for stripping photoresistZAJAC JOHN·Filed 1988·Granted Jul 4, 1989·32 cites·18 claims
- 3471US7448349B2Internal combustion engine and methodZAJAC OPTIMUM OUTPUT MOTORS IN·Filed 2006·Granted Nov 11, 2008·2 cites·21 claims
- 3570US8371103B2Valve assembly and method for high temperature internal combustion enginesZAJAC OPTIMUM OUTPUT MOTORS INC·Filed 2009·Granted Feb 12, 2013·6 cites·25 claims
- 3670US7594492B2Rotary valve system and engine using the sameZAJAC OPTIMUM OUTPUT MOTORS IN·Filed 2006·Granted Sep 29, 2009·2 cites·10 claims
- 3769US4727993AWafer cassette having multi-directional accessTEGAL CORP·Filed 1987·Granted Mar 1, 1988·37 cites·3 claims
- 3867US4182646AProcess of etching with plasma etch gasZAJAC JOHN·Filed 1978·Granted Jan 8, 1980·22 cites·14 claims
- 3963US8413604B2Slotted electrostatic shield modification for improved etch and CVD process uniformityGEORGE RENE·Filed 2006·Granted Apr 9, 2013·2 cites·11 claims
- 4061US6501636B1Electrostatic clamp for holding workpieces with irregular surfacesFiled 2001·Granted Dec 31, 2002·7 cites·7 claims
- 4159US9869241B2Split cycle engine and method of operationZAJAC JOHN·Filed 2014·Granted Jan 16, 2018·1 cites·18 claims
- 4255US5094426AMetering valve assemblyZAJAC JOHN·Filed 1990·Granted Mar 10, 1992·18 cites·10 claims
- 4352US4418646ALoad lock valveEATON CORP·Filed 1982·Granted Dec 6, 1983·16 cites·10 claims
- 4451US4936772AFlame ashing process and apparatus for stripping photoresistZAJAC JOHN·Filed 1989·Granted Jun 26, 1990·9 cites·7 claims
- 4550US9249696B2Valve assembly and method for high temperature enginesZAJAC OPTIMUM OUTPUT MOTORS INC·Filed 2013·Granted Feb 2, 2016·0 cites·24 claims
- 4649US9074526B2Split cycle engine and method with increased power densityZAJAC JOHN·Filed 2011·Granted Jul 7, 2015·0 cites·21 claims
- 4745US2007193602A1Systems and Methods for Photoresist Strip and Residue Treatment in Integrated Circuit ManufacturingSAVAS STEPHEN E·Filed 2007·Application pending·0 cites
- 4845US2007186953A1Systems and Methods for Photoresist Strip and Residue Treatment in Integrated Circuit ManufacturingSAVAS STEPHEN E·Filed 2007·Application pending·0 cites
- 4944US4539062AModular plasma reactor with local atmosphereTEGAL CORP·Filed 1984·Granted Sep 3, 1985·7 cites·4 claims
- 5043US4994921AHalftone imaging system and methodZAJAC JOHN·Filed 1988·Granted Feb 19, 1991·3 cites·10 claims
Showing the top 50 of 61 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when John Zajac 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 →