Patents by Inventor Stephen R Tonge

Stephen R Tonge 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).

  • Lipid-containing compositions and uses thereof
    Patent number: 6436905
    Abstract: Lipid-containing compositions are disclosed which provide surfactants and solubilizing agents useful in medicine, biochemistry and other industries.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: August 20, 2002
    Assignee: Aston University
    Inventors: Stephen R Tonge, Brian J Tighe
  • Method for using an antimicrobial agent for ophthalmic formulations
    Patent number: 5380303
    Abstract: A disinfectant or preservative composition particularly adapted for use in ophthalmic preparations such as contact lens disinfecting, cleaning, cushioning, wetting, soaking and reconditioning solutions and additionally in topical medications and tear substitutes, which uses a hydrophilic polymeric antimicrobial agent, namely poly[oxyethylene(dimethylimino) (ethylene dimethylimino)ethylene dichloride] with additional agents including EDTA and alkali salts thereof and a boric acid/borate buffer system.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: January 10, 1995
    Assignee: Frank J. Holly
    Inventors: Frank J. Holly, Stephen R. Tonge
  • Antimicrobial agent for opthalmic formulations
    Patent number: 5300296
    Abstract: A disinfectant or preservative composition particularly adapted for use in ophthalmic preparations such as contact lens disinfecting, cleaning, cushioning, wetting, soaking and reconditioning solutions and additionally in topical medications and tear substitutes, which uses a hydrophilic polymeric antimicrobial agent, namely poly[oxyethylene(dimethylimino) (ethylene dimethylimino)ethylene dichloride] with additional agents including EDTA and alkali salts thereof and a boric acidborate buffer system.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: April 5, 1994
    Assignee: Frank J. Holly
    Inventors: Frank J. Holly, Stephen R. Tonge