Patents by Inventor Paul M. Frisby

Paul M. Frisby 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).

  • Hydroxyethylhydrazinium nitrate-acetone formulations and methods of making hydroxyethylhydrazinium nitrate-acetone formulations
    Patent number: 9481840
    Abstract: Embodiments of the present disclosure include one-step synthesis to prepare a hypergolic green Fuel (HGF) propellant from 2-Hydroxyethylhydrazine (HEH) via a “one-step synthesis method”. In addition, embodiments of the present disclosure include fully nitrated HGF and partially nitrated HGF and formulations containing Hydroxyethylhydrazinium Nitrate (HEHN) and acetone, where the HEHN is produced independently.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: November 1, 2016
    Assignees: UNIVERSITY OF ALABAMA IN HUNTSVILLE, OGDEN ENGINEERING & ASSOCIATES, LLC
    Inventors: James E. Smith, Jr., Gregory E. Ogden, Clinton J. Brown, Paul M. Frisby, Sahar A. Torabzadeh
  • Hydroxyethylhydrazinium Nitrate-Acetone formulations and methods of making Hydroxyethylhydrazinium Nitrate-Acetone formulations
    Publication number: 20100287824
    Abstract: Embodiments of the present disclosure include one-step synthesis to prepare a hypergolic green Fuel (HGF) propellant from 2-Hydroxyethylhydrazine (HEH) via a “one-step synthesis method”. In addition, embodiments of the present disclosure include fully nitrated HGF and partially nitrated HGF and formulations containing Hydroxyethylhydrazinium Nitrate (HEHN) and acetone, where the HEHN is produced independently.
    Type: Application
    Filed: April 9, 2010
    Publication date: November 18, 2010
    Inventors: James E. Smith, JR., Gregory E. Ogden, Clinton J. Brown, Paul M. Frisby, Sahar A. Torabzadeh