Patents by Inventor Jean-Bernard Ducrocq

Jean-Bernard Ducrocq 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).

  • Temperature-controlled electronic circuit
    Patent number: 5268558
    Abstract: A temperature-controlled electronic circuit comprises a substrate, components of the circuit on its first side and a heating array on its second side. It finds a particular application in space telecommunications.
    Type: Grant
    Filed: November 5, 1991
    Date of Patent: December 7, 1993
    Assignee: France Telecom
    Inventors: Abdul Youssef, Jean-Bernard Ducrocq, Alain Meyer
  • Filter having a dielectric resonator
    Patent number: 5027090
    Abstract: A filter having a dielectric resonator, the filter comprising at least one cylindrical cavity (10) inside which there is a dielectric resonator (11) whose axis of symmetry (.DELTA.) is colinear with the axis of symmetry of the cavity (10), the filter being characterized in that the resonator is held by a system of dished washers (15, 16). Applicable to microwave frequencies.
    Type: Grant
    Filed: April 13, 1990
    Date of Patent: June 25, 1991
    Assignee: Alcatel Espace
    Inventors: Jean-Michel Gueble, Jean-Bernard Theron, Yannick Latouche, Jean-Bernard Ducrocq, Bernard Perez
  • Filter having a dielectric resonator
    Patent number: 4939489
    Abstract: A filter having a dielectric resonator, the filter comprising at least one cylindrical cavity (10) containing a cylindrical dielectric resonator (11) whose axis of symmetry (.DELTA.) is colinear with the axis of said cavity (10), and the resonator being held in a longitudinally asymmetrical position inside said cavity (10) by a mandrel system which clamps around the cylindrical portion thereof and which includes at least one spoke for fixing it to said cavity while leaving play relative to said cavity.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: July 3, 1990
    Assignee: Alcatel Espace
    Inventors: Jean-Michel Gueble, Bernard Theron, Yannick Latouche, Jean-Bernard Ducrocq