Assignee
ELFOTEC AG
CH·6 granted patents·31 citations·filing 1975–1981
Top patents by PatentIndex Score
6 records- 0168US4181422AProcess and apparatus for developing and cleaning a charge image carrierELFOTEC AG·Filed 1977·Granted Jan 1, 1980·14 cites·6 claims
- 0252US4210448AProcess for electrophotographic image formation and transferELFOTEC AG·Filed 1976·Granted Jul 1, 1980·8 cites·10 claims
- 0351US4240723AProcess for electrographic image production and an apparatus for carrying out this processELFOTEC AG·Filed 1975·Granted Dec 23, 1980·8 cites·4 claims
- 0421US4307166AProcess for improving the photoelectric properties of a laminated charge image carrierELFOTEC AG·Filed 1975·Granted Dec 22, 1981·1 cites·3 claims
- 0519US4191567AProcedure for making a reusable photoconducting charge image carrier and charge image carriers prepared by this methodELFOTEC AG·Filed 1975·Granted Mar 4, 1980·0 cites·12 claims
- 0618US4386148AProcess for improving the photoelectric properties of a laminated charge image carrierELFOTEC AG·Filed 1981·Granted May 31, 1983·0 cites·2 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →