Patents by Inventor Paulus Christiaan Maria Gortemaker

Paulus Christiaan Maria Gortemaker 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).

  • Spinneret of gold and platinum-containing alloy
    Patent number: 5733492
    Abstract: The invention relates to a spinneret of a very specific geometry which provides more strength compared with the commonly applied spinnerets, and to a spinneret made of a specific metal alloy which also provides a further high strength. In combination, a spinneret is resistant to spinning pressures up to 60.000 kPa if it is made of the specific geometry and made of the preferred metal alloy of gold, platinum, rhodium and palladium, which does not comprise contaminations and which material is very homogeneous and thus does not show an obvious second phase.
    Type: Grant
    Filed: July 30, 1996
    Date of Patent: March 31, 1998
    Assignee: Akzo Nobel N.V.
    Inventors: Jacques Wilhelmus Jozef Appeldoorn, Paulus Christiaan Maria Gortemaker