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| Patents for G02B 1 - Optical elements characterised by the material of which they are made; Optical coatings for optical elements (38,909) |
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| 02/10/1976 | US3937680 Contact lenses | | 02/03/1976 | US3936136 Multilayer anti-reflection film for ultraviolet rays | | 01/27/1976 | US3935495 Chemically polished polycrystalline alumina material | | 01/27/1976 | US3935303 Acrylamide-n-vinyl pyrrolidone-butyl acrylate terpolymer | | 01/27/1976 | US3935020 Boron-rare earth-alkaline earth-zirconium oxides | | 01/27/1976 | US3934961 Three layer anti-reflection film | | 01/20/1976 | US3933970 Shaped press-forged normally frangible inorganic crystals | | 01/20/1976 | US3933678 Polyphenylmethyl siloxane, silica, polyether | | 01/06/1976 | US3931373 Replication processes for producing plastic optical components |
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