Patents by Inventor Stephen L. Davis

Stephen L. Davis 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).

  • SOLUTION AND METHOD FOR SCAVENGING SULPHUR COMPOUNDS
    Publication number: 20090145849
    Abstract: There is disclosed herein a solution for removing a sulphur compound or carbon dioxide from a fluid and methods for its use, said solution comprising a metal at between about 0.05 to 25 percent by weight, an amine at between about 10 to 80 percent by volume and water. The sulphur compound may be hydrogen sulphide or a mercaptan. In one aspect, the method is practiced at temperatures significantly below zero.
    Type: Application
    Filed: July 6, 2006
    Publication date: June 11, 2009
    Applicant: DIVERSIFIED INDUSTRIES LTD.
    Inventors: STEPHEN L. DAVIS, DALE STOREY
  • Rigid inflatable boat
    Patent number: 5228407
    Abstract: A ridged inflatable boat is provided with cavities formed on the out-board side of the hull, between the hull and the surrounding pneumatic tube, whereby fastening hardware intended to either retain the pneumatic tube or above deck hardware, may pass through the hull, deck or gunwhale without puncturing the pneumatic tube.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: July 20, 1993
    Assignee: Barry Douglas Enterprises Ltd.
    Inventors: John L. Cummer, Jack W. Sarin, Paul Fredrickson, James P. Kindsvater, Stephen L. Davis