Inventor · disambiguated record
Ewell Cook
Also filed as: COOK EWELL · COOK EWELL R
8 granted patents·5 pending applications·163 citations·filing 1984–2011
88Inventor score
Files withVERIFICATION TECHNOLOGIES INC4EASTMAN KODAK CO2SANOFI SA1SCHWARTZ RUSSELL1STERLING WINTHROP INC1
Top patents by PatentIndex Score
13 records- 0191US6952392B2Laser reactive dyes for DVD copy protection systemVERIFICATION TECHNOLOGIES INC·Filed 2003·Granted Oct 4, 2005·40 cites·16 claims
- 0283US5019492APhotographic element and process comprising a blocked photographically useful compoundEASTMAN KODAK CO·Filed 1989·Granted May 28, 1991·51 cites·8 claims
- 0381US7176308B2Processes for preparing novel methylene blue derivativeVERIFICATION TECHNOLOGIES INC·Filed 2003·Granted Feb 13, 2007·13 cites·3 claims
- 0473US5514716AHydroxamic acid and carboxylic acid derivatives, process for their preparation and use thereofSTERLING WINTHROP INC·Filed 1994·Granted May 7, 1996·26 cites·15 claims
- 0565US7914703B2Poly(oxyalkylene)ated colorants and their use as fluorescent security taggantsSUN CHEMICAL CORP·Filed 2007·Granted Mar 29, 2011·1 cites·12 claims
- 0664US5618844AHydroxamic acid and carboxylic acid derivatives, process for their preparation and use thereofSANOFI SA·Filed 1995·Granted Apr 8, 1997·20 cites·15 claims
- 0763US8211333B2Poly(oxyalkylene)ated colorants and their use as fluorescent security taggantsSCHWARTZ RUSSELL·Filed 2011·Granted Jul 3, 2012·1 cites·12 claims
- 0858US2008062838A1Materials for optical medium copy-protection transiently reacting to a reader beamVERIFICATION TECHNOLOGIES INC·Filed 2007·Application pending·0 cites
- 0951US2005186382A1Laser reactive dyes for DVD copy protection systemVERIFICATION TECHNOLOGIES INC·Filed 2005·Application pending·0 cites
- 1049US4672029AColor-forming couplers and their use in the analytical determination of hydrogen peroxide or other analytesEASTMAN KODAK CO·Filed 1984·Granted Jun 9, 1987·11 cites·23 claims
- 1147US2004004922A1Materials for optical medium copy-protection transiently reacting to a reader beamFiled 2003·Application pending·0 cites
- 1245US2007129543A1Processes for preparing novel methylene blue derivativeVERFICATION TECHNOLOGIES INC·Filed 2007·Application pending·0 cites
- 1335US2004152017A1Bis-propyl amine analog and compositionFiled 2003·Application pending·0 cites
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