Inventor · disambiguated record
Edwin L. Libby
Also filed as: LIBBY EDWIN L · LIBBY EDWIN LANGFORD
4 granted patents·93 citations·filing 1975–1982
78Inventor score
Technology areasG03G
Files withIBM4
Top patents by PatentIndex Score
4 records- 0193US4426153AApparatus for the reduction of image intensity variations in a continuously variable reducing copierIBM·Filed 1982·Granted Jan 17, 1984·50 cites·9 claims
- 0288US4165168AElectrophotographic document copier machine with modular paper path assemblyIBM·Filed 1977·Granted Aug 21, 1979·29 cites·2 claims
- 0349US4116554AOptical reduction system featuring the provision of bordersIBM·Filed 1977·Granted Sep 26, 1978·7 cites·5 claims
- 0448US4116562AOptical system featuring change in magnification by combined lens and mirror motionIBM·Filed 1975·Granted Sep 26, 1978·7 cites·16 claims
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