Patents by Inventor Ruth Janssens

Ruth Janssens 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 and Device for Machining a Workpiece by Means of a Laser
    Publication number: 20130126491
    Abstract: The invention relates to a method for machining a workpiece by means of a laser, wherein a laser beam of the laser irradiates the workpiece, the laser beam remains stationary and the workpiece is moved when a central region of the workpiece is irradiated, and the laser beam and the workpiece are moved at least intermittently when an edge region of the workpiece is irradiated.
    Type: Application
    Filed: April 11, 2011
    Publication date: May 23, 2013
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Thomas Veit, Ruth Janssen
  • Filled fluoropolymer composition for corrosion resistance
    Patent number: 5972494
    Abstract: Compositions of fluoropolymer containing a first filler component such as mica and a second filler component such as talc are resistant to permeation by water and aqueous acid and provide useful coatings for such items as chemical equipment. The composition can be used as coatings which can be applied by electrostatic spray of dry powder.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: October 26, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Ruth Janssens