Patents by Inventor Steven Howard Gerson

Steven Howard Gerson 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).

  • Preservative system for topically administrable pharmaceutical compositions containing a fatty acid/amino acid soap
    Patent number: 6284749
    Abstract: Fatty acid/amino acid soaps are used in conjunction with an antifungal acid and a chelating agent as a new preservative system for topically administrable pharmaceutical compositions.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: September 4, 2001
    Assignee: Alcon Manufacturing, Ltd.
    Inventors: Ernesto J. Castillo, Steven Howard Gerson, Wesley Wehsin Han
  • Preservative system for topically administrable pharmaceutical compositions
    Patent number: 6211238
    Abstract: Anionic surfactants are used in conjunction with an antifungal acid and a chelating agent to preserve topically administrable pharmaceutical compositions without the need for a conventional preservative such as benzalkonium chloride.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: April 3, 2001
    Assignee: Alcon Laboratories, Inc.
    Inventors: Ernesto J. Castillo, Steven Howard Gerson, Wesley Wehsin Han
  • Use of certain anionic amino acid based surfactants to enhance antimicrobial effectiveness of topically administrable pharmaceutical compositions
    Patent number: 6146622
    Abstract: Anionic amino acid based surfactants are used to enhance antimicrobial effectiveness in topically administrable pharmaceutical compositions containing at least one active ingredient, a cationic preservative and an anionic polyelectrolyte, such as carboxyvinyl polymers, xanthan gum, polystyrene sulfonic acid polymers and cationic exchange resins.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: November 14, 2000
    Assignee: Alcon Laboratories, Inc.
    Inventors: Ernesto J. Castillo, Steven Howard Gerson, Wesley Wehsin Han