Patents by Inventor Patrick Ruffieux

Patrick Ruffieux 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).

  • Case for an instrument of small volume including a manually removable back cover
    Patent number: 6655831
    Abstract: The watch case includes a middle part (2) and a removable back cover (3). The back cover (3) is held under the middle part by means of at least one rail (5), this rail having a first portion (7) arranged to be slid into a groove (9) made in the middle part (2) and a second portion (11) arranged to cap an edge (13) of the back cover (3). Without using tools, the user can remove the rail, take off the back cover and change the battery or batteries powering the movement.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: December 2, 2003
    Assignee: Asulab S.A.
    Inventor: Patrick Ruffieux