Patents by Inventor Frederik H. In 'T Veld

Frederik H. In 'T Veld 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).

  • Method of post-etching a mechanically treated substrate
    Patent number: 6045715
    Abstract: Method of providing a pattern of apertures and/or cavities in, for example, a glass duct plate of a plasma-addressed liquid crystal display, in which first a mechanical treatment is performed (for example, by means of powder blasting) and then a wet-chemical etching treatment is performed to render the walls of the ducts microscopically less rough so that the optical disturbance is reduced and the glass becomes clearer again.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: April 4, 2000
    Assignee: U.S. Philips Corporation
    Inventors: Gijsbertus A. C. M. Spierings, Poul K. Larsen, Jan B. P. H. Van der Putten, Johannes M. M. Busio, Frederik H. In 'T Veld, Lambertus Postma