Patents by Inventor Rolf Ehrat

Rolf Ehrat 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 reducing the drift rate of accelerometer and accelerometer with reduced drift rate
    Publication number: 20080092653
    Abstract: An accelerometer comprises a chamber and a proof mass supported by an elastic element within the chamber. The elastic element is formed of fused silica. A sensor senses displacement of the proof mass. Means to inhibit interaction of water vapour with the elastic element is provided.
    Type: Application
    Filed: October 18, 2006
    Publication date: April 24, 2008
    Inventors: Harold O. Seigel, Djordje Mihajilovic, Ivo Brcic, Dhirejlal Mistry, Rolf Ehrat