Patents by Inventor Joseph J. Yang

Joseph J. Yang 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).

  • Apparatus for conducting mammalian dermatological studies
    Patent number: 5144958
    Abstract: A protective cell for use in conducting dermal studies on mammals. The protective cell comprises a shell-like section terminating in a leading edge and a rim section integral to the leading edge of the shell-like section and contoured to form a surface for contacting the animal so that the area of skin to be used for the dermatological study is protected. The cavity of the shell-like section is of a shape and volume sufficient to substantially eliminate contact of the interior surface of the shell-like section with the mammal. A method for conduting dermal studies is also provided.
    Type: Grant
    Filed: August 22, 1990
    Date of Patent: September 8, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Andrew J. Krueger, Joseph J. Yang
  • Non-carcinogenic light lubricants and a process for producing same
    Patent number: 4990238
    Abstract: A substantially non-carcinogenic light lubricant and a process for its production. The process comprises the step of blending an effective amount of a substantially non-tumorigenic vacuum distilled hydrocarbon oil of luricating viscosity with a tumorigenic atmospheric distilled light hydrocarbon oil, the tumorigenic light hydrocarbon oil having an initial boiling point of at least 250.degree. F., wherein the resultant blend is substantially non-carcinogenic and of lubricating viscosity.
    Type: Grant
    Filed: December 29, 1989
    Date of Patent: February 5, 1991
    Assignee: Mobil Oil Corporation
    Inventors: George Cruzan, Carl R. Mackerer, Joseph J. Yang, George E. Cox
  • Apparatus and method for conducting mammalian dermatological studies
    Patent number: 4971066
    Abstract: A protective cell for use in conducting dermal studies on mammals. The protective cell comprises a shell-like section terminating in a leading edge and a rim section integral to the leading edge of the shell-like section and contoured to form a surface for contacting the animal so that the area of skin to be used for the dermatological study is protected. The cavity of the shell-like section is of a shape and volume sufficient to substantially eliminate contact of the interior surface of the shell-like section with the mammal. A method for conducting dermal studies is also provided.
    Type: Grant
    Filed: June 28, 1989
    Date of Patent: November 20, 1990
    Assignee: Mobil Oil Corporation
    Inventors: Andrew J. Krueger, Joseph J. Yang