Patents by Inventor Mathijs P. H. Souts

Mathijs P. H. Souts 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).

  • Patent number: 5637028
    Abstract: Method of polishing a surface (5a) of a noble metal or an alloy comprising mainly noble metal, in which a polishing means is moved across the surface while exerting a polishing pressure for obtaining a plane and smooth polished surface without any defects. A composition comprising demineralized water with 20 to 40% by weight of an organic liquid comprising a poly-alcohol or a derivative thereof, for example, glycerol, and particles which can be encapsulated and have a Knoop's hardness of between 5 and 50 GPa, for example Al.sub.2 O.sub.3 grains, is used as a polishing means.
    Type: Grant
    Filed: March 16, 1994
    Date of Patent: June 10, 1997
    Assignee: U.S. Philips Corporation
    Inventors: Jan Haisma, Cornelis L. Adema, Lambertus Postma, Mathijs P. H. Souts