Patents by Inventor A. David Baker

A. David Baker 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).

  • Novel dequalinium analogs
    Publication number: 20040234465
    Abstract: A composition for protecting human skin from harmful effects of the sun, the composition comprising a topically effective amount of:
    Type: Application
    Filed: June 25, 2004
    Publication date: November 25, 2004
    Applicant: Research Foundation of the City University of New York.
    Inventors: Susan A. Rotenberg, A. David Baker
  • Dequalinium analogs
    Patent number: 6790962
    Abstract: A composition for protecting human skin from harmful effects of the sun, the composition comprising a topically effective amount of: (a) a first chemical compound that absorbs ultraviolet light sufficiently to reduce significantly the damage to human skin from harmful effects of ultraviolet light; and (b) a second chemical compound having the formula: (Q-L-Q)w+2Xy−z wherein: Q represents 4-E-2-R3-1-quinolinium; E represents NR1R2, COO R1, OR1, I, Br, Cl, F, or NO3 N represents a nitrogen atom; R1 and R2 independently represent hydrogen or lower alkyl; R3 represents E, hydrogen or lower alkyl; L represents a chain comprising n atoms, the atoms in the chain being t carbon atoms and 0 to approximately 0.5t heteroatoms; the minimum value of n is 12; the maximum value of n is 22; X represents an anion; and w represents 1 or 3, y represents 1 or 2 and z represent 1, 2 or 3, with the proviso that 2w=yz.
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: September 14, 2004
    Assignee: The Research Foundation of the City University of New York
    Inventors: Susan A. Rotenberg, A. David Baker
  • Novel dequalinium analogs
    Publication number: 20030118529
    Abstract: A composition for protecting human skin from harmful effects of the sun, the composition comprising a topically effective amount of:
    Type: Application
    Filed: December 24, 2002
    Publication date: June 26, 2003
    Applicant: Research Foundation of the City University of New York
    Inventors: Susan A. Rotenberg, A. David Baker
  • Novel dequalinium analogs
    Publication number: 20020114769
    Abstract: A chemical compound having the formula:
    Type: Application
    Filed: September 14, 2001
    Publication date: August 22, 2002
    Inventors: Susan A. Rotenberg, A. David Baker