Patents by Inventor David P. Horney

David P. Horney 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).

  • Patent number: 5575927
    Abstract: Iron and ferrous sulfide in specific amounts are combined under aerobic or anaerobic conditions to reduce halogenated hydrocarbons in aqueous compositions to non-toxic by-products at near neutral pH and Eh values below -325 mV. The combination of iron metal and ferrous sulfide in relative amounts gives the unexpected result of a faster reduction rate using iron or ferrous sulfide alone and a controlled pH.
    Type: Grant
    Filed: July 6, 1995
    Date of Patent: November 19, 1996
    Assignee: General Electric Company
    Inventors: Timothy M. Sivavec, David P. Horney, Sunita S. Baghel
  • Patent number: 5543059
    Abstract: A method is provided for remediation of contaminated solutions using a tiered metal wall or column. The tiered metal wall or column has at least three zones with graduated sizes of reducing metal particles. Contaminated solutions pass through the tiered wall or column to dehalogenate contaminant halogenated hydrocarbons.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: August 6, 1996
    Assignee: General Electric Company
    Inventors: Paul E. Howson, Patricia D. Mackenzie, David P. Horney