Patents
Patents for C07D 345 - Heterocyclic compounds containing rings having selenium or tellurium atoms as the only ring hetero atoms (419)
01/1983
01/05/1983EP0068877A2 Telluropyrylium compounds and electron donating photoconductive compositions containing same
12/1982
12/21/1982US4365017 Telluropyrylium electron accepting dye sensitizers for electron donating photoconductive compositions
12/14/1982US4363919 Heterofulvalene geminal dithiolate compounds and their selenium and tellurium analogs and a method of fabricating the same
12/07/1982US4362662 Electrochromic displays, lithography, optical printing
01/1982
01/26/1982US4312992 And charge transfer salts with tetracyanoquinodimethan
01/26/1982US4312991 Chemical intermediates for heterofulvanenes
08/1981
08/18/1981CA1107289A1 Substituted heterofulvalenes
06/1981
06/16/1981US4273668 Ethylene carbonate, photoinitiators
01/1981
01/20/1981US4246173 Reaction of a diselenocarbamate and haloketone followed by treatment with a dechalkogenizing reagent
01/07/1981EP0020896A1 A method of fabricating dithiafulven geminal dithiolate compounds and their selenium analogs
08/1979
08/14/1979CA1060456A1 Preparation of novel photochromic compounds and imaging members
07/1979
07/24/1979CA1059138A1 5,6,11,12-tetraselenotetracene-o-chloroanil complexes
07/17/1979CA1058624A1 Coupling of molecular units by deselenization of selenocarbonyl compounds
08/1978
08/15/1978US4106939 Imaging and recording of information utilizing a tellurium tetrahalide complex of an aromatic amine
01/1978
01/03/1978US4066460 Imaging and recording of information utilizing tellurium tetrahalide
06/1977
06/07/1977US4028346 Tetraselenofulvalene, dithiodiselenofulvalene and the TCNQ salts thereof
10/1976
10/05/1976US3984593 5,6,11,12-Tetraselenotetracene-o-chloroanil complexes
08/1976
08/10/1976US3973966 Photochromic composition containing a diphenyl dibenzochrom-3-ene
07/1976
07/27/1976US3971742 Containing tellurium and selenium;high speed electrography
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