Patents by Inventor James M. Ryan

James M. Ryan 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).

  • Distillative separation of carbon dioxide from light hydrocarbons
    Patent number: 4350511
    Abstract: An improved distillative separation of carbon dioxide and light hydrocarbons is disclosed in which the formation of an azeotrope between these components is prevented by addition of an agent to said distillation column and in which prevention of the azeotrope allows a more complete separation to be achieved.
    Type: Grant
    Filed: September 28, 1981
    Date of Patent: September 21, 1982
    Assignee: Koch Process Systems, Inc.
    Inventors: Arthur S. Holmes, James M. Ryan
  • Cryogenic distillative separation of acid gases from methane
    Patent number: 4318723
    Abstract: A method of eliminating solids formation in a cryogenic distillative separation of acid gases from methane is disclosed. This method comprises adding a solids-preventing agent to the solids potential zone of the distillation column. Typical solids-preventing agents are one or more C.sub.2 -C.sub.5 alkanes, or other nonpolar liquids which are miscible with methane at the column conditions. The elimination of solids formation permits a more complete separation to be achieved.
    Type: Grant
    Filed: November 14, 1979
    Date of Patent: March 9, 1982
    Assignee: Koch Process Systems, Inc.
    Inventors: Arthur S. Holmes, James M. Ryan
  • Distillative separation of carbon dioxide from hydrogen sulfide
    Patent number: 4293322
    Abstract: A distillative separation of carbon dioxide and hydrogen sulfide is improved by adding a C.sub.3 -C.sub.6 alkane, a mixture of C.sub.3 -C.sub.6 alkanes, SO.sub.2 or SO.sub.3 to a distillation column to increase the relative volatility of carbon dioxide to hydrogen sulfide. Increasing the relative volatility facilitates the separation.
    Type: Grant
    Filed: April 23, 1980
    Date of Patent: October 6, 1981
    Assignee: Helix Technology Corporation
    Inventors: James M. Ryan, Arthur S. Holmes
  • Photographic camera or similar article
    Patent number: D257434
    Type: Grant
    Filed: April 25, 1978
    Date of Patent: October 21, 1980
    Inventors: James M. Conner, Donato F. Pizzuti, John M. Reynard, James M. Ryan
  • Folding photographic camera or similar article
    Patent number: D257849
    Type: Grant
    Filed: April 25, 1978
    Date of Patent: January 13, 1981
    Assignee: Polaroid Corporation
    Inventors: James M. Conner, Patrick L. Finelli, John C. Ostrowski, James M. Ryan, Frederick Slavitter
  • Electronic flash or similar article
    Patent number: D261523
    Type: Grant
    Filed: September 25, 1978
    Date of Patent: October 27, 1981
    Assignee: Polaroid Corporation
    Inventors: James M. Conner, James M. Ryan