Patents by Inventor Robinson P. Khosah

Robinson P. Khosah 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).

  • Supercritical fluid chromatography packing material containing alumina
    Patent number: 4880543
    Abstract: Disclosed is a method of separating organic or organometallic materials under supercritical fluid conditions, the method comprising the steps of providing a bed of packing material selected from a metal oxide/hydroxide support material having phsophorous-containing organic molecules bonded to reactive sites on said support material, alumina and alumina-containing mixtures. The materials are introduced to the bed and a fluid is added to the bed under supercritical fluid conditions. The fluid removes one of the materials from the bed.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: November 14, 1989
    Assignee: Aluminum Company of America
    Inventors: Robinson P. Khosah, John W. Novak, Douglas G. Weaver, Karen R. Fraser-Milla, Richard R. Burr
  • Supercritical fluid chromatography packing material
    Patent number: 4816159
    Abstract: Disclosed is a method of separating organic or organometallic materials under supercritical fluid conditions, the method comprising the steps of providing a bed of packing material selected from a metal oxide/hydroxide support material having phosphorous-containing organic molecules bonded to reactive sites on said support material, alumina and alumina-containing mixtures. The materials are introduced to the bed and a fluid is added to the bed under supercritical fluid conditions. The fluid removes one of the materials from the bed.
    Type: Grant
    Filed: August 31, 1987
    Date of Patent: March 28, 1989
    Assignee: Aluminum Company of America
    Inventors: Robinson P. Khosah, John W. Novak, Douglas G. Weaver, Karen R. Fraser-Milla, Richard R. Burr