Inventor · disambiguated record
Fred W. Spong
Also filed as: SPONG FRED W · SPONG FRED WILLIAM
14 granted patents·290 citations·filing 1976–1985
93Inventor score
Top patents by PatentIndex Score
14 records- 0198US4097895AMultilayer optical recordRCA CORP·Filed 1976·Granted Jun 27, 1978·110 cites·5 claims
- 0292US4183060ACapacitance distance sensor apparatus for video disc player/recorderRCA CORP·Filed 1978·Granted Jan 8, 1980·51 cites·6 claims
- 0384US4190843ARecording methods for a multilayer optical recordRCA CORP·Filed 1977·Granted Feb 26, 1980·25 cites·6 claims
- 0481US4305081AMultilayer record blank for use in optical recordingRCA CORP·Filed 1977·Granted Dec 8, 1981·35 cites·5 claims
- 0578US4661941AOptical video or data tape record and playback apparatusRCA CORP·Filed 1979·Granted Apr 28, 1987·23 cites·8 claims
- 0671US4694358AMagneto-optic recording structure and methodKERDIX INC·Filed 1985·Granted Sep 15, 1987·18 cites·15 claims
- 0752US4600682AOptical storage structureSTORAGE TECHNOLOGY CORP·Filed 1984·Granted Jul 15, 1986·7 cites·9 claims
- 0845US4480302AOptical recording mediaSTORAGE TECHNOLOGY CORP·Filed 1982·Granted Oct 30, 1984·6 cites·12 claims
- 0943US4625215AOptical storage structureSTORAGE TECHNOLOGY CORP·Filed 1984·Granted Nov 25, 1986·5 cites·7 claims
- 1042US4137077ABroadening the spatial frequency pass band of a thermoplastic layerRCA CORP·Filed 1976·Granted Jan 30, 1979·4 cites·8 claims
- 1135US4148636ABroadening the spatial frequency pass band of a thermoplastic layerRCA CORP·Filed 1978·Granted Apr 10, 1979·3 cites·4 claims
- 1233US4219848AOptical record playback apparatus employing light frequency at which alternate regions of record track exhibit anti-reflection conditionRCA CORP·Filed 1977·Granted Aug 26, 1980·1 cites·3 claims
- 1332US4625217ABroad band multilayer optical storage structure having a thin metallic optically transmissive layerSTORAGE TECHNOLOGY CORP·Filed 1984·Granted Nov 25, 1986·1 cites·2 claims
- 1432US4174881ARecording a synthetic focused-image hologram on a thermally deformable plasticRCA CORP·Filed 1977·Granted Nov 20, 1979·1 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →