Patents by Inventor Bertrand Kempf

Bertrand Kempf 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 for electrolytic polishing of dental instruments made of nickel-titanium alloy
    Publication number: 20050173258
    Abstract: The subject of the present invention is an electrolytic polishing process for dental instruments of nickel-titanium alloy using an electrolyte comprising sulfuric acid and methanol. The electricity is supplied by applying a current, the current density being regulated so that it remains constant.
    Type: Application
    Filed: July 8, 2003
    Publication date: August 11, 2005
    Inventors: Francois Aeby, Bertrand Kempf
  • Convertible table, especially for games
    Patent number: 4345758
    Abstract: A convertible table which is primarily intended for games comprises a stationary horizontal bottom panel and a movable panel slidably mounted for outward withdrawal or inward return to the storage position by means of at least one pair of roller-tracks carried by fixed side-panels. The roller-tracks are placed with respect to the stationary bottom panel at a level such that the two panels are located in the storage position at a vertical distance from each other which permits storage of objects on the bottom panel.
    Type: Grant
    Filed: February 20, 1980
    Date of Patent: August 24, 1982
    Inventor: Bertrand Kempf
  • Cabinet for housing stereophonic and electronic equipment
    Patent number: D254882
    Type: Grant
    Filed: September 1, 1977
    Date of Patent: May 6, 1980
    Inventor: Bertrand Kempf