Patents by Inventor Wilheim Schuster

Wilheim Schuster 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: 4144760
    Abstract: A method for taking and collecting sample material. A sampler is used which consists entirely, or at least at its surface or contact area, of a plastic material which is soluble in water. The sampler, after wetting and hence superficial dissolution, is brought into contact with the surface to be examined. The sample material sticks to the plastic. The sampler is removed and dissolved, whereby the sample material is collected.
    Type: Grant
    Filed: September 30, 1977
    Date of Patent: March 20, 1979
    Assignee: Battelle-Institut e.V.
    Inventors: Gert Schlueter, Wilheim Schuster