Patents by Inventor Olaf Peter Rudolf Keipert

Olaf Peter Rudolf Keipert 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).

  • Hydrocarbon fluids
    Patent number: 7056869
    Abstract: Hydrocarbon fluids are provided which have ASTM D-86 boiling point ranges within 235° C. to 400° C. and a naphthenic content greater than 60%, the naphthenics containing polycyclic materials, the fluids preferably have an aromatic content below 2% and an aniline point below 100° C. The fluids are particularly useful solvents for printing inks, drilling fluids, metal working fluids and as silicone extenders.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: June 6, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Pierre-Yves Guyomar, Olaf Peter Rudolf Keipert, Robert A. Verbelen, Gerd Merhof, Els H. Slachmuijlders, André A. Theyskens
  • Hydrocarbon fluids
    Publication number: 20030211949
    Abstract: Hydrocarbon fluids are provided which have ASTM D-86 boiling point ranges within 235° C. to 400° C. and a naphthenic content greater than 60%, the naphthenics containing polycyclic materials, the fluids preferably have an aromatic content below 2% and an aniline point below 100° C. The fluids are particularly useful solvents for printing inks, drilling fluids, metal working fluids and as silicone extenders.
    Type: Application
    Filed: March 6, 2003
    Publication date: November 13, 2003
    Inventors: Pierre-Yves Guyomar, Olaf Peter Rudolf Keipert, Robert A. Verbelen, Gerd Merhof, Els H. Slachmuijlders, Andre A. Theyskens