Inventor · disambiguated record
Robert A. Chapman
Also filed as: CHAPMAN ROBERT · CHAPMAN ROBERT A
7 granted patents·2 pending applications·243 citations·filing 1977–2009
89Inventor score
Files withAPPLIED MATERIALS INC3CHAPMAN ROBERT A1DOULTON ROMM1RACAL GROUP SERVICE LTD1RACAL GROUP SERVICES LTD1
Top patents by PatentIndex Score
9 records- 0188US5536330AMethod of purging and pumping vacuum chamber to ultra-high vacuumAPPLIED MATERIALS INC·Filed 1995·Granted Jul 16, 1996·57 cites·23 claims
- 0284US4512667APortable information device having an output related to natural physical eventsDOULTON ROMM·Filed 1982·Granted Apr 23, 1985·71 cites·24 claims
- 0373US5759287AMethod of purging and passivating a semiconductor processing chamberAPPLIED MATERIALS INC·Filed 1996·Granted Jun 2, 1998·33 cites·4 claims
- 0473US4206414AElectrical synchronizing circuitsRACAL GROUP SERVICES LTD·Filed 1978·Granted Jun 3, 1980·22 cites·8 claims
- 0569US4131856AElectrical synchronizing circuitsRACAL GROUP SERVICE LTD·Filed 1977·Granted Dec 26, 1978·19 cites·15 claims
- 0657US2009019803A1Floor repair kit and methodCHAPMAN ROBERT A·Filed 2007·Application pending·0 cites
- 0756US5830808APlasma reactor with magnet for protecting an electroacoustic chuck from the plasmaAPPLIED MATERIALS INC·Filed 1996·Granted Nov 3, 1998·18 cites·7 claims
- 0855US5484485APlasma reactor with magnet for protecting an electrostatic chuck from the plasmaFiled 1993·Granted Jan 16, 1996·23 cites·12 claims
- 0948US2010191787A1Sequential MultiplierVNS PORTFOLIO LLC·Filed 2009·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →