Patents by Inventor Peter N. Karanja

Peter N. Karanja 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).

  • Broad spectrum disinfectant
    Patent number: 8455551
    Abstract: A broad spectrum disinfectant includes a quaternary ammonium halogen, an alkaline agent, a chelating agent, a nonionic surfactant coupler, at least one alkoxylated nonionic surfactant, and water or any aliphatic alcohol. The disinfectant composition is phenol-free, is effective in eradicating microorganisms such as various fungi, and is stable to gamma-irradiation.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: June 4, 2013
    Assignee: American Sterilizer Company
    Inventors: Christopher C. Heisig, Thomas W. Smith, Peter N. Karanja, Nancy-Hope E. Kaiser
  • Broad spectrum disinfectant
    Publication number: 20120225948
    Abstract: A broad spectrum disinfectant includes a quaternary ammonium halogen, an alkaline agent, a chelating agent, a nonionic surfactant coupler, at least one alkoxylated nonionic surfactant, and water or any aliphatic alcohol. The disinfectant composition is phenol-free, is effective in eradicating microorganisms such as various fungi, and is stable to gamma-irradiation.
    Type: Application
    Filed: March 4, 2011
    Publication date: September 6, 2012
    Applicant: AMERICAN STERILIZER COMPANY
    Inventors: Christopher C. Heisig, Thomas W. Smith, Peter N. Karanja, Nancy-Hope E. Kaiser