Patents by Inventor Ray Hardman

Ray Hardman 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).

  • Oxychlorination process
    Patent number: 5763710
    Abstract: A method for the catalytic oxychlorination of ethane to VCM comprising combining ethane and a chlorine source in an oxychlorination reactor in the presence of an oxychlorination catalyst, the reaction conditions being selected to reduce the influence of the oxychloride form of the catalyst, separating the VCM product from the output of the reactor and recycling the by-products to the reactor.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: June 9, 1998
    Assignee: EVC Technology AG
    Inventors: Ian Michael Clegg, Ray Hardman
  • Vinyl chloride production process
    Patent number: 5728905
    Abstract: A method for the production of vinyl chloride monomer by catalytic oxychlorination of ethane wherein HCl is supplied in excess of the stiochiometric requirement for chlorine in the reaction.
    Type: Grant
    Filed: August 15, 1995
    Date of Patent: March 17, 1998
    Assignee: EVC Technology AG
    Inventors: Ian Michael Clegg, Ray Hardman
  • By-product recycling in oxychlorination process
    Patent number: 5663465
    Abstract: A method for the catalytic oxychlorination of ethane to VCM comprising the steps of combining ethane and a chlorine source in an oxychlorination reactor with a suitable catalyst to promote the oxychlorination of the ethane, collecting the resultant VCM and by-productsand recycling the by-products to the oxychlorination reactor to participate in the reaction therein.
    Type: Grant
    Filed: August 15, 1995
    Date of Patent: September 2, 1997
    Assignee: EVC Technology AG
    Inventors: Ian Michael Clegg, Ray Hardman