Patents by Inventor James Nelson Francis

James Nelson Francis 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).

  • Preparation of CU+ zeolites
    Patent number: 4034065
    Abstract: The Cu.sup.+.sup.+ cations of highly siliceous zeolites are found to undergo spontaneous reduction to Cu.sup.+ cations upon dehydration and to produce oxygen by oxidation of water.
    Type: Grant
    Filed: September 26, 1975
    Date of Patent: July 5, 1977
    Assignee: Union Carbide Corporation
    Inventors: Paul Haruo Kasai, James Nelson Francis, Roland Justin Bishop, Jr.
  • Adsorption of carbon monoxide using silver zeolites
    Patent number: 4019880
    Abstract: Zeolitic molecular sieves having high SiO.sub.2 /Al.sub.2 O.sub.3 molar ratios and containing Ag.sup.+ cations are found to exhibit a high degree of selectivity and affinity for CO molecules and are capable of separating CO from gas streams even when water vapor is present.
    Type: Grant
    Filed: August 10, 1976
    Date of Patent: April 26, 1977
    Assignee: Union Carbide Corporation
    Inventors: Jule Anthony Rabo, James Nelson Francis, Charles Leslie Angell
  • Selective adsorption of carbon monoxide from gas streams
    Patent number: 4019879
    Abstract: Zeolitic molecular sieves having high SiO.sub.2 /Al.sub.2 O.sub.3 molar ratios and containing Cu.sup.+ cations are found to exhibit a high degree of selectivity and affinity for CO molecules and are capable of separating CO from gas streams even when water vapor is present.
    Type: Grant
    Filed: September 26, 1975
    Date of Patent: April 26, 1977
    Assignee: Union Carbide Corporation
    Inventors: Jule Anthony Rabo, James Nelson Francis, Charles Leslie Angell