Patents by Inventor Jean Louis Vrignaud

Jean Louis Vrignaud 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).

  • Patent number: 6108852
    Abstract: A comprehensive oral hygiene device preferably having a multi-headed oral care brush disposed at one end of an elongated handle and a manufacturing process therefor. The oral care brush of the present invention has at least one head and preferably two heads which are disposed in angular, generally opposing coactive relationship to each other. Each of the opposing heads is integrally formed on an independently manufactured flexible arm and each arm is subsequently attached to the elongated handle. The attachment of the arms to the handle involves a secondary process called overmolding. Overmolding in this case involves the placement of the arms in a secondary mold in operative position against the end of the handle. Then, a soft, preferably rubber-like material is injected into the secondary mold and surrounds elongated portions of the arms and the handle. When cured and removed from the secondary mold, the rubber-like material secures the arms in operative position against the handle.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: August 29, 2000
    Assignee: Remedent USA, Inc.
    Inventor: Jean Louis Vrignaud
  • Patent number: 5934762
    Abstract: A comprehensive oral hygiene device preferably having a multi-headed oral care brush disposed at one end of an elongated handle and a manufacturing process therefor. The oral care brush of the present invention has at lease one head and preferably two heads which are disposed in angular, generally opposing coactive relationship to each other. Each of the opposing heads is integrally formed on an independently manufactured flexible arm and each arm is subsequently attached to the elongated handle. The attachment of the arms to the handle involves a secondary process called overmolding. Overmolding in this case involves the placement of the arms in a secondary mold in operative position against the end of the handle. Then, a soft, preferably rubber-like material is injected into the secondary mold and surrounds elongated portions of the arms and the handle. When cured and removed from the secondary mold, the rubber-like material secures the arms in operative position against the handle.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: August 10, 1999
    Assignee: Remedent USA, Inc.
    Inventor: Jean Louis Vrignaud
  • Patent number: 5758380
    Abstract: An oral hygiene device having, in one embodiment, a unique, unrestricted, self-adjusting two-headed gum-specific brush on one end of a handle; and in another embodiment, a two-headed gumbrush on one end of an elongated handle and a toothbrush on the opposite end of the handle. A tongue scraper may also be included on the toothbrush end of the device.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: June 2, 1998
    Assignee: Devmark Ltd.
    Inventor: Jean Louis Vrignaud
  • Patent number: 5177826
    Abstract: A powered toothbrush is provided with a pair of disc-like rotary brushes mounted for rotation about a axis generally perpendicular to the length of the brush. The rotary brushes are in axially spaced relationship and are provided with inwardly directed bristles. Between the rotary brushes, upper and lower linear brushes are mounted above and below the axis of rotation for linear reciprocating motion generally perpendicular to that axis. The upper brush has upwardly directed bristles, and the linear brushes are mounted to the rotary brushes so as to be brought into reciprocal, linear movement when the rotary brushes are reciprocated angularly.
    Type: Grant
    Filed: March 16, 1990
    Date of Patent: January 12, 1993
    Assignee: Hagemann International
    Inventors: Jean Louis Vrignaud, Albert W. Gebhard, Kenneth J. Hegemann, David W. Roecker
  • Patent number: D386315
    Type: Grant
    Filed: June 25, 1996
    Date of Patent: November 18, 1997
    Assignee: Devmark, Ltd.
    Inventor: Jean-Louis Vrignaud
  • Patent number: D401414
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: November 24, 1998
    Inventor: Jean Louis Vrignaud
  • Patent number: D401415
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: November 24, 1998
    Inventor: Jean Louis Vrignaud
  • Patent number: D401416
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: November 24, 1998
    Inventor: Jean Louis Vrignaud
  • Patent number: D401417
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: November 24, 1998
    Inventor: Jean Louis Vrignaud
  • Patent number: D401418
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: November 24, 1998
    Inventor: Jean Louis Vrignaud