Patents by Inventor Bohumil Slavata

Bohumil Slavata 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).

  • Clamping frame for contact printers of working masks
    Patent number: 4879573
    Abstract: A clamping frame for contact printers of working masks in the semiconductor industry enables the application of packings made of easily obtainable raw materials and limits tangential forces acting on masks of the original and copy. A first packing and a second packing with a supporting frame between both packings is provided. The supporting frame prevents transmission of tangential forces to packings which come in contact with masks of the original and of the copy.
    Type: Grant
    Filed: April 22, 1988
    Date of Patent: November 7, 1989
    Assignee: TESLA, koncernovy podnik
    Inventor: Bohumil Slavata