Patents by Inventor Gordon C. Campbell

Gordon C. Campbell 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).

  • Polymorphs of losartan and the process for the preparation of form II of losartan
    Patent number: 5608075
    Abstract: Polymorphic forms of Losartan (Formula I) ##STR1## and a process for the preparation of Form II of Losartan. Losartan is known to be useful in the treatment of hypertension.
    Type: Grant
    Filed: January 12, 1995
    Date of Patent: March 4, 1997
    Assignees: Merck & Co., Inc., E. I. Du Pont de Nemours & Company, The DuPont Merck Pharmaceutical Company
    Inventors: Gordon C. Campbell, Jr., Anil M. Dwivedi, Dorothy A. Levorse, James A. McCauley, Krishnaswamy S. Raghavan
  • Saber saw
    Patent number: 5009012
    Abstract: A saber saw comprises an elongated displacing rod which supports a saw blade and is reciprocable in a displacement direction extending along its elongation and also swingable in a swinging direction which is transverse to the displacement direction, and a unit for moving the displacement rod in the swinging direction and including a driveable control element having a cam surface and a sensing element which is connected with the displacement rod and is controlled by the control element, the control element being rotatable about an axis of rotation, the cam surface of the control element being formed as a symmetrical conical surface which is eccentrical relative to the axis of rotation of the control element.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: April 23, 1991
    Assignee: Robert Bosch Power Tool Corporation
    Inventors: David M. Martinez, Gordon C. Campbell
  • Saber saw
    Patent number: 4884344
    Abstract: A saber saw comprises an elongated displacing rod which supports a saw blade and is reciprocable in a displacement direction extending along its elongation and also swingable in a swinging direction which is transverse to the displacement direction, and a unit for moving the displacement rod in the swinging direction and including a driveable control element having a cam surface and a sensing element which is connected with the displacement rod and is controlled by the control element, the control element being rotatable about an axis of rotation, the cam surface of the control element being formed as a symmetrical conical surface which is eccentrical relative to the axis of rotation of the control element.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: December 5, 1989
    Assignee: Robert Bosch Power Tool Corporation
    Inventors: David M. Martinez, Gordon C. Campbell
  • Air passages for pneumatic tools
    Patent number: 4258798
    Abstract: A tool handle construction incorporating a unitary inlet-exhaust assembly, allowing economies of construction.
    Type: Grant
    Filed: March 9, 1979
    Date of Patent: March 31, 1981
    Assignee: Rockwell International Corporation
    Inventors: Gordon C. Campbell, Robert H. Alexander, George C. Atwell