Patents by Inventor Franciscus Gerardus Coenradus Verweg

Franciscus Gerardus Coenradus Verweg 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).

  • Sensor,display device and recording device
    Publication number: 20040136637
    Abstract: Keyboard comprising e.g. LEDs (12) to generate light beams within a transparent synthetic material substrate with cavities to receive keys (2) having a reflective part, if necessary. The fluctuation of light intensity in different directions is detected by means of e.g. photodiodes (18).
    Type: Application
    Filed: November 18, 2003
    Publication date: July 15, 2004
    Inventor: Franciscus Gerardus Coenradus Verweg