| Patents for C09K 9 - Tenebrescent materials, i.e. materials for which the range of wavelengths for energy adsorption is changed as a result of excitation by some form of energy (4,715) |
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| 07/01/1999 | WO1999032928A1 Electrochromic element |
| 07/01/1999 | WO1999032927A1 Electrochromic element |
| 07/01/1999 | WO1999032926A1 Electrochromic element |
| 07/01/1999 | WO1999032574A1 Uv protected electrochromic device |
| 07/01/1999 | CA2315080A1 Uv protected electrochromic device |
| 06/30/1999 | EP0926146A1 Chromene compounds |
| 06/29/1999 | US5916972 Material having temperature-defendant light transmission |
| 06/29/1999 | US5916487 Process for obtaining a photochromic compound and products obtained |
| 06/24/1999 | WO1999031082A1 PHOTOCHROMIC 6-ARYL SUBSTITUTED 3H-NAPHTHO[2,1-b]PYRANS |
| 06/24/1999 | WO1999031081A1 Ph sensitive photochromic dyes |
| 06/24/1999 | WO1999019917A3 Composite suitable for use in electrochemical cells |
| 06/24/1999 | DE19756740A1 Electrochromic device is protected against UV light by nano particles |
| 06/23/1999 | EP0799431B1 Organic photochromic materials with high refractive index, their preparation and articles formed from these materials |
| 06/22/1999 | US5914174 Lens or semi-finished blank comprising photochromic resin compositions |
| 06/21/1999 | EP0954522A4 Novel substituted naphthopyrans |
| 06/17/1999 | WO1999029682A1 Novel water soluble photochromic compounds |
| 06/16/1999 | EP0922737A1 Ink-jet inks comprising pigment precursors |
| 06/15/1999 | CA2164949C Photochromic naphthopyran compounds |
| 06/09/1999 | EP0783483B1 Method for preparing photochromic compounds of the spiro[indolin-[2,3']-benzoxazine] ringed type |
| 06/08/1999 | US5910854 For use as an architectural or vehicular glazing |
| 06/08/1999 | US5910517 Comprising perfluoro surfactants in admixture with nonfluorinated, copolymerizable, radiation curable prepolymers |
| 06/08/1999 | US5910516 Photopolymerizing an unsaturated compound, an ultraviolet photoinitiator and a photochromic compound; using a filter which eliminates the uv light of wavelength shorter than 400 nm. |
| 06/02/1999 | EP0919604A2 Color-change materials |
| 06/02/1999 | EP0772798B1 Spiro indoline- 2,3']-benzoxazine]-type photochromic compounds containing a 6'-cyano or phenylsulphonyl group and with a 7', 8'-condensed benzene ring in the benzoxazine ring and use of same in ophthalmic optics |
| 05/26/1999 | EP0917556A1 Electrochromic indicating device |
| 05/26/1999 | EP0917555A1 Electrochrome system |
| 05/20/1999 | WO1999024438A1 Heterocyclic annealed photochromic 2h- and 3h-naphtopyran systems, method for producing the same and use thereof |
| 05/14/1999 | WO1999023531A1 Electrochromic mirror |
| 05/06/1999 | WO1999011328A3 Markings and patterns for playing fields which can be activated and deactivated |
| 05/06/1999 | EP0912908A1 Novel photochromic heterocyclic fused indenonaphthopyrans |
| 05/06/1999 | DE19744943A1 Liquid crystal polymer dispersion |
| 05/05/1999 | CN1216113A Phtochromic naphthopyran compositions of neutral color |
| 04/30/1999 | CA2253160A1 Color-change materials |
| 04/28/1999 | EP0717763B1 Photochromically tinted objects |
| 04/28/1999 | CN1215496A Iridium oxide film for electrochromic device |
| 04/22/1999 | WO1999019917A2 Composite suitable for use in electrochemical cells |
| 04/22/1999 | CA2305218A1 Composite suitable for use in electrochemical cells |
| 04/14/1999 | EP0908501A1 Reversible thermochromic composition |
| 04/14/1999 | CN1213687A Polymerizable benzpyrrole and pyrrole substituted fulgide photochromic material and its synthetic process and use |
| 04/14/1999 | CN1213686A Benzpyrrole substituted flugide photochromic material and its synthetic process and use |
| 04/07/1999 | EP0628064B1 Photochromic naphthopyrans |
| 04/07/1999 | CA2249519A1 Reversible thermochromic composition |
| 04/06/1999 | CA2071438C Heat-sensitive recording materials and phenol compounds |
| 04/01/1999 | WO1999015518A1 Photochromic naphtopyrane colorants, method for the production and use thereof, photochromic object |
| 04/01/1999 | DE19741705A1 Photochromic indeno(2,1-f)naphtho(1,2-b)pyran compounds useful e.g. in photochromic spectacle lenses |
| 03/30/1999 | US5889131 Heat resistance, transparency and melt processability; thin films |
| 03/30/1999 | US5888431 Polymeric matrices with electrochromic solutions interspersed therein |
| 03/23/1999 | US5886183 Mass dyeing of high molecular weight organic material, laser dyes of printing toners, colour filters, organic photoreceptors, electroluminescent and photoluminescent elements, optical information storage media or solar cells |
| 03/17/1999 | EP0902033A1 Spiro compound and photochromic material |
| 03/17/1999 | EP0901494A1 Photochromic spiroxazines with asymmetric monocyclic substituent, compositions and articles containing them |
| 03/17/1999 | CN1211250A Photochemic spiroxazines with asymmetric monocyclic substituent, compositions and articles containing them |
| 03/16/1999 | US5882556 Manufacture of plastic optical articles such as video discs, ophthalmic lenses and the like, by contacting the partially cured polymer with the photochromic composition at or above the gelation point of the polymer, highly efficient and |
| 03/11/1999 | WO1999011328A2 Markings and patterns for playing fields which can be activated and deactivated |
| 03/11/1999 | DE19738605A1 Ein- und ausschaltbare Markierungen und Muster für Spielfelder Switched on and off markings and patterns for playing fields |
| 03/10/1999 | EP0900798A1 Fulgimide compounds, use of them, and compositions containing the same |
| 03/09/1999 | US5879592 Water soluble photochromic compounds, compositions and optical elements comprising the compounds |
| 03/09/1999 | US5879591 Mixing photochromic spirooxazine compound, polyfunctional acrylate containing color-forming impurities, heat polymerization initiator, epoxide compound to reduce initial coloring of cured product |
| 03/09/1999 | US5879438 Containing specific electron accepting lightfastness providing agent |
| 03/03/1999 | EP0805993A4 Photochromic substituted naphthopyran compounds |
| 03/03/1999 | EP0792468A4 Novel photochromic indeno-fused naphthopyrans |
| 03/02/1999 | US5876634 Doped with antimony or niobium |
| 03/02/1999 | US5876633 Electrochromic metal oxides |
| 02/25/1999 | WO1999009112A1 Uv-protected electrochromic solution |
| 02/25/1999 | WO1999009111A1 Electrochromic system with coupled red-ox system and special anions |
| 02/25/1999 | DE19735733A1 Coupled electrochromic substance used in electrochromic system |
| 02/25/1999 | DE19735732A1 Ultra-violet-stabilised electrochromic solution used as variable transmission medium in electrochromic device |
| 02/25/1999 | CA2300131A1 Electrochromic system with coupled red-ox system and special anions |
| 02/23/1999 | US5873932 Method for improving light-fastness of reversible thermochromic compositions at the time of color development |
| 02/18/1999 | WO1999008153A1 Electrochromic devices |
| 02/17/1999 | EP0897127A2 Electrochromic mirror |
| 02/16/1999 | US5872882 Non-linear optical polycarbonates |
| 02/16/1999 | US5872256 Cyclobutenedione derivative, process for preparing the same, and nonlinear optical element |
| 02/11/1999 | WO1998042693A3 NEUTRAL COLOURING PHOTOCHROMIC 2H-NAPHTHO[1,2-b]PYRANS AND HETEROCYCLIC PYRANS |
| 02/03/1999 | EP0894275A1 Photochromic naphthopyran compositions of improved fatigue resistance |
| 01/21/1999 | WO1999002621A1 Electrochrome polymer systems |
| 01/21/1999 | CA2294795A1 Electrochrome polymer systems |
| 01/13/1999 | EP0890869A2 Light shielding device and shielding method |
| 01/13/1999 | EP0890119A1 Photochromic naphthopyran compositions of neutral color |
| 01/12/1999 | CA2144084C Photochromic compositions of improved fatigue resistance |
| 01/07/1999 | EP0889084A1 Photochromic compositions having improved fade rate |
| 01/07/1999 | EP0888906A1 Thermosensitive reversible recording material |
| 01/02/1999 | CA2240092A1 Photochromic compositions having improved fade rate |
| 12/30/1998 | EP0886804A2 Electrochromic or photoelectrochromic device |
| 12/30/1998 | EP0886803A1 Improved electrochromic layer and devices comprising same |
| 12/30/1998 | EP0862513A4 Polymeric materials for photochromic applications |
| 12/30/1998 | EP0816912B1 Process for the production of a photochromic layer |
| 12/23/1998 | WO1998057943A1 Chromene compounds |
| 12/23/1998 | EP0850427A4 Photochromic spiroxazines, compositions and articles containing them |
| 12/10/1998 | WO1998055477A1 Novel substituted naphthopyrans |
| 12/10/1998 | WO1998055457A1 Substituted naphthopyrans |
| 12/02/1998 | EP0880568A1 Electrochromic system |
| 12/02/1998 | EP0880567A1 Electrochromic system |
| 12/02/1998 | EP0655162B1 Compositions of bacteriorhodopsin variants with increased memory time and their use |
| 11/25/1998 | CN1200073A Polymeric materials for photochromic applications |
| 11/12/1998 | WO1998050807A1 Photochromic compositions, photochromic compounds (co)polymers matrices |
| 11/12/1998 | CA2287961A1 Photochromic compositions, photochromic compounds (co)polymers matrices |
| 11/11/1998 | EP0529100B1 Indolinospirobenzopyran derivative |
| 11/10/1998 | US5833885 Photochromic compounds |
| 11/04/1998 | EP0875509A1 Chromene compound |
| 11/04/1998 | EP0875064A1 Iridium oxide film for electrochromic device |