Inventor · disambiguated record
Charles C. Cheng
Also filed as: CHENG CHARLES C · CHENG CHARLES C-K · CHENG CHARLES CHEN · CHENG JR CHARLES C
13 granted patents·1,413 citations·filing 1978–2022
95Inventor score
Files withREAD RITE CORP8AT & T MOBILITY II LLC1AT & T WIRELESS SERVICES INC1CHENG CHARLES C1CHENG ZHIQING1
Top patents by PatentIndex Score
13 records- 0197US6185051B1High numerical aperture optical focusing device for use in data storage systemsREAD RITE CORP·Filed 1999·Granted Feb 6, 2001·198 cites·25 claims
- 0296US6229782B1High numerical aperture optical focusing device for use in data storage systemsREAD RITE CORP·Filed 1998·Granted May 8, 2001·171 cites·27 claims
- 0396US6130779ANear field magneto-optical head made using wafer processing techniquesREAD RITE CORP·Filed 1998·Granted Oct 10, 2000·175 cites·37 claims
- 0496US6094803AWafer processing techniques for near field magneto-optical headREAD RITE CORP·Filed 1999·Granted Aug 1, 2000·162 cites·21 claims
- 0595US6377535B1High numerical aperture optical focusing device having a conical incident facet and a parabolic reflector for use in data storage systemsREAD RITE CORP·Filed 1998·Granted Apr 23, 2002·203 cites·38 claims
- 0695US6212153B1High NA solid catadioptric focusing device having a flat kinoform phase profileREAD RITE CORP·Filed 1999·Granted Apr 3, 2001·156 cites·20 claims
- 0795US5986978ARead/write head and method for magnetic reading and magneto-optical writing on a data storage mediumREAD RITE CORP·Filed 1998·Granted Nov 16, 1999·116 cites·61 claims
- 0890US6806813B1Method for location-based asset managementAT & T WIRELESS SERVICES INC·Filed 1999·Granted Oct 19, 2004·144 cites·23 claims
- 0985US4224509AHolographic scanning systemNCR CO·Filed 1978·Granted Sep 23, 1980·40 cites·13 claims
- 1081US7579960B2Method for location-based asset managementAT & T MOBILITY II LLC·Filed 2004·Granted Aug 25, 2009·25 cites·25 claims
- 1170US5986995AHigh NA catadioptric focusing device having flat diffractive surfacesREAD RITE CORP·Filed 1999·Granted Nov 16, 1999·23 cites·18 claims
- 1250US12046374B2Digital twinCHENG ZHIQING·Filed 2022·Granted Jul 23, 2024·0 cites·14 claims
- 1348US9536007B2Method for location-based asset managementCHENG CHARLES C·Filed 2009·Granted Jan 3, 2017·0 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →