Patents by Inventor Karl Fele

Karl Fele 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).

  • Method of using polypropylene glycol to improve movement and intermixture of blood and other fluids in capillary tubes
    Patent number: 4766079
    Abstract: A method of neutralizing the electrostatic forces in liquids or solutions in liquid phase, preferably blood and blood solutions, respectively. The electrostatic forces primarily consist of surface tension and interrepellant forces between particles in the solution.The purpose of the invention is obtained by adding polypropylene glycol H[OCH(CH.sub.3)CH.sub.2 ].sub.n OH to the liquid or solution. Polypropylene glycol possesses properties allowing it to neutralize the electrostatic forces without affecting the red blood cells.
    Type: Grant
    Filed: April 30, 1986
    Date of Patent: August 23, 1988
    Assignee: Biolabimex AB
    Inventors: Karl Fele, Stellan Lindberg
  • Combined evacuated blood sampling tube and sedimentation rate column
    Patent number: D292827
    Type: Grant
    Filed: May 15, 1985
    Date of Patent: November 17, 1987
    Assignee: Biolabimex AB
    Inventor: Karl Fele