Patents by Inventor Susan Lynn Nagahashi

Susan Lynn Nagahashi 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).

  • Stabilized haloalkynyl microbicide compositions
    Patent number: 7083801
    Abstract: Antimicrobial compositions based on haloalkynyl active ingredients that are chemically stable in the presence of chelated metal ion are disclosed. Particularly preferred is the use of metal ion chelating agents based on selected amine compounds that provide the metal ion in a form sufficient to provide stability to other antimicrobial components in the aqueous composition, but without concurrently degrading the antimicrobial effectiveness of the haloalkynyl active ingredient.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: August 1, 2006
    Inventors: Beverly Jean El A'mma, Susan Lynn Nagahashi
  • Stabililzed haloalkynyl microbicide compositions
    Publication number: 20040014736
    Abstract: Antimicrobial compositions based on haloalkynyl active ingredients that are chemically stable in the presence of chelated metal ion are disclosed. Particularly preferred is the use of metal ion chelating agents based on selected amine compounds that provide the metal ion in a form sufficient to provide stability to other antimicrobial components in the aqueous composition, but without concurrently degrading the antimicrobial effectiveness of the haloalkynyl active ingredient.
    Type: Application
    Filed: June 24, 2003
    Publication date: January 22, 2004
    Inventors: Beverly Jean El A'mma, Susan Lynn Nagahashi
  • Stable biocidal compositions
    Patent number: 6255331
    Abstract: Disclosed are biocidal compositions comprising mixtures of formaldehyde-releasing imidazolidines, such as 1,3-dimethylol-5,3-dimethylhydantoin, and 3-isothiazolones stabilized with low levels of copper salts.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: July 3, 2001
    Assignee: Rohm and Haas Company
    Inventors: Beverly Jean El A'mma, Susan Lynn Nagahashi