Patents by Inventor Ewell Cook

Ewell Cook has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Poly(oxyalkylene)ated colorants and their use as fluorescent security taggants
    Patent number: 8211333
    Abstract: Certain poly(oxyalkylene) colorants are disclosed along with method of preparation thereof. A method of using these colorants as fluorescent security taggants is also disclosed.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: July 3, 2012
    Assignee: Sun Chemical Corp.
    Inventors: Russell Schwartz, Don DeRussy, Dan Gloster, Steve Postle, Rakesh Vig, Ewell Cook, Tatiana Romanova
  • Poly(oxyalkylene)ated Colorants and Their Use as Fluorescent Security Taggants
    Publication number: 20110226155
    Abstract: Certain poly(oxyalkylene) colorants are disclosed along with method of preparation thereof. A method of using these colorants as fluorescent security taggants is also disclosed.
    Type: Application
    Filed: February 22, 2011
    Publication date: September 22, 2011
    Applicant: Sun Chemical Corporation
    Inventors: Russell Schwartz, Don DeRussy, Daniel F. Gloster, Stephen Postle, Rakesh Vig, Ewell Cook, Tatiana Romanova
  • Poly(oxyalkylene)ated colorants and their use as fluorescent security taggants
    Patent number: 7914703
    Abstract: Certain poly(oxyalkylene) colorants are disclosed along with method of preparation thereof. A method of using these colorants as fluorescent security taggants is also disclosed.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: March 29, 2011
    Assignee: Sun Chemical Corporation
    Inventors: Russell Schwartz, Don DeRussy, Daniel F. Gloster, Stephen Postle, Rakesh Vig, Ewell Cook, Tatiana Romanova
  • Poly(oxyalkylene)ated Colorants and Their Use as Fluorescent Security Taggants
    Publication number: 20080178763
    Abstract: Certain poly(oxyalkylene) colorants are disclosed along with method of preparation thereof. A method of using these colorants as fluorescent security taggants is also disclosed.
    Type: Application
    Filed: November 29, 2007
    Publication date: July 31, 2008
    Applicant: Sun Chemical Corporation
    Inventors: Russell Schwartz, Don DeRussy, Daniel F. Gloster, Stephen Postle, Rakesh Vig, Ewell Cook, Tatiana Romanova
  • MATERIALS FOR OPTICAL MEDIUM COPY-PROTECTION TRANSIENTLY REACTING TO A READER BEAM
    Publication number: 20080062838
    Abstract: A method and system for providing copy-protected optical medium using transient optical state change security materials capable of changing optical state and software code to detect such change in optical state.
    Type: Application
    Filed: May 30, 2007
    Publication date: March 13, 2008
    Applicant: Verification Technologies, Inc.
    Inventors: Richard SELINFREUND, Scott Gerger, Donald Goyette, Michael Colandreo, Rakesh Vig, Junzhong Li, Ewell Cook, Tomeko Turner
  • PROCESSES FOR PREPARING NOVEL METHYLENE BLUE DERIVATIVE
    Publication number: 20070129543
    Abstract: Methods for the preparation of 7-(dipropylamino)pheno-thiazin-3-ylidene]-dipropylamine
    Type: Application
    Filed: January 31, 2007
    Publication date: June 7, 2007
    Applicant: Verfication Technologies, Inc.
    Inventors: Rakesh Vig, Scott Gerger, Richard Selinfreund, Peter Miller, Mike Cunningham, Chris Philips, Ewell Cook, Anthony Saglimbeni
  • Processes for preparing novel methylene blue derivative
    Patent number: 7176308
    Abstract: Methods for the preparation of 7-(dipropylamino)pheno-thiazin-3-ylidene]-dipropylamine.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: February 13, 2007
    Assignee: Verification Technologies, Inc.
    Inventors: Rakesh Vig, Scott Gerger, Richard H. Selinfreund, Peter Miller, Mike Cunningham, Chris Phillips, Ewell Cook, Anthony A. Saglimbeni
  • Laser reactive dyes for DVD copy protection system
    Patent number: 6952392
    Abstract: A method and system for providing copy-protected optical medium using transient optical state change security materials capable of changing optical state when exposed to a wavelength of about 630 nm to about 660 nm and software code to detect such change in optical state.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: October 4, 2005
    Assignee: Verification Technologies, Inc.
    Inventors: Rakesh Vig, Scott Gerger, Richard H. Selinfreund, Peter Miller, Junzhing Li, Ewell Cook, Anthony A. Saglimbeni
  • Laser reactive dyes for DVD copy protection system
    Publication number: 20050186382
    Abstract: A method and system for providing copy-protected optical medium using transient optical state change security materials capable of changing optical state when exposed to a wavelength of about 630 nm to about 660 nm and software code to detect such change in optical state.
    Type: Application
    Filed: April 25, 2005
    Publication date: August 25, 2005
    Applicant: VERIFICATION TECHNOLOGIES, INC.
    Inventors: Rakesh Vig, Scott Gerger, Richard Selinfreund, Peter Miller, Junzhong Li, Ewell Cook, Anthony Saglimbeni
  • Processes for preparing novel methylene blue derivative
    Publication number: 20050107607
    Abstract: Methods for the preparation of 7-(dipropylamino)pheno-thiazin-3-ylidene]-dipropylamine
    Type: Application
    Filed: November 17, 2003
    Publication date: May 19, 2005
    Inventors: Rakesh Vig, Scott Gerger, Richard Selinfreund, Peter Miller, Mike Cunningham, Chris Philips, Ewell Cook, Anthony Saglimbeni
  • Bis-propyl amine analog and composition
    Publication number: 20040152017
    Abstract: Copy-protected optical medium utilizing a composition comprising a transient optical state change security materials capable of changing optical state when exposed to a wavelength of about 630 nm to about 660 nm and an electron transfer agent.
    Type: Application
    Filed: November 17, 2003
    Publication date: August 5, 2004
    Inventors: Rakesh Vig, Scott Gerger, Richard H. Selinfreund, Peter Miller, Mike Cunningham, Chris Philips, Ewell Cook, Anthony A. Saglimbeni
  • Laser reactive dyes for DVD copy protection system
    Publication number: 20040110088
    Abstract: A method and system for providing copy-protected optical medium using transient optical state change security materials capable of changing optical state when exposed to a wavelength of about 630 nm to about 660 nm and software code to detect such change in optical state.
    Type: Application
    Filed: August 15, 2003
    Publication date: June 10, 2004
    Inventors: Rakesh Vig, Scott Gerger, Richard H. Selinfreund, Peter Miller, Junzhong Li, Ewell Cook, Anthony A. Saglimbeni
  • Materials for optical medium copy-protection transiently reacting to a reader beam
    Publication number: 20040004922
    Abstract: A method and system for providing copy-protected optical medium using transient optical state change security materials capable of changing optical state and software code to detect such change in optical state.
    Type: Application
    Filed: April 17, 2003
    Publication date: January 8, 2004
    Inventors: Richard H. Selinfreund, Scott Gerger, Donald R. Goyette, Michael Colandreo, Rakesh Vig, Junzhong Li, Ewell Cook, Tomeko Turner