Patents by Inventor Jean-Pierre Georges

Jean-Pierre Georges 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: 9085339
    Abstract: A forward and reverse pedaling system for a bicycle with automatic gear change replacing the derailleur and clutch operating at a very low speed using an engagement wheel (16), all enclosed within a housing case filled with oil. The two wheels (11) and (13), which are themselves driven by rods (9) and (10), make a reciprocating to and fro motion of less than a half turn regardless of the direction of rotation of the drive wheel (1) and drive the wheel (12) followed by the driven wheel (2) via the low speed clutch between the wheels (15) and (16). This system can be applied to any mechanical assembly in which it is required, and is not limited to use in bicycles.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: July 21, 2015
    Inventor: Jean-Pierre Georges Armand Crepin
  • Publication number: 20140366661
    Abstract: A forward and reverse pedaling system for a bicycle with automatic gear change replacing the derailleur and clutch operating at a very low speed using an engagement wheel (16), all enclosed within a housing case filled with oil. The two wheels (11) and (13), which are themselves driven by rods (9) and (10), make a reciprocating to and fro motion of less than a half turn regardless of the direction of rotation of the drive wheel (1) and drive the wheel (12) followed by the driven wheel (2) via the low speed clutch between the wheels (15) and (16). This system can be applied to any mechanical assembly in which it is required, and is not limited to use in bicycles.
    Type: Application
    Filed: September 24, 2012
    Publication date: December 18, 2014
    Inventor: Jean-Pierre Georges Armand Crepin
  • Patent number: 8094672
    Abstract: A first aspect of the invention is a method of transmitting data packets over a transmission channel shared by a plurality of users, based on the time and/or frequency diversity slotted Aloha technique, in which at least two replicas of each packet to be transmitted are sent over said transmission channel, wherein each replica transports signaling information enabling the other replica(s) of the same packet to be located in the time and/or frequency domain. A second aspect of the invention is a method of recovering packets in the receiver, the method exploiting said signaling information to execute an interference cancellation algorithm for recovering packets corrupted by collisions caused by access conflicts. Other aspects of the invention are a transmitter equipment and a receiver packet recovery equipment adapted to use said methods.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: January 10, 2012
    Assignee: Agence Spatiale Europeenne
    Inventors: Enrico Casini, Oscar Del Rio Herrero, Riccardo De Gaudenzi, Daniel Maurice Eliane Delaruelle, Jean-Pierre Georges Joseph Ghislain Choffray
  • Publication number: 20060171418
    Abstract: A first aspect of the invention is a method of transmitting data packets over a transmission channel shared by a plurality of users, based on the time and/or frequency diversity slotted Aloha technique, in which at least two replicas of each packet to be transmitted are sent over said transmission channel, wherein each replica transports signaling information enabling the other replica(s) of the same packet to be located in the time and/or frequency domain. A second aspect of the invention is a method of recovering packets in the receiver, the method exploiting said signaling information to execute an interference cancellation algorithm for recovering packets corrupted by collisions caused by access conflicts. Other aspects of the invention are a transmitter equipment and a receiver packet recovery equipment adapted to use said methods.
    Type: Application
    Filed: January 30, 2006
    Publication date: August 3, 2006
    Inventors: Enrico Casini, Oscar Herrero, Riccardo De Gaudenzi, Daniel Delaruelle, Jean-Pierre Georges Joseph Choffray
  • Patent number: 6554858
    Abstract: Intraluminal prosthesis comprising a tubular trunk element (1), which is radially expandable and compressible and which axially has a cavity (2) open at its two ends and divided into several axial channels (7, 8), and at least one branch element (13) which is radially expandable and compressible and which axially has a cavity open at its two ends, being, in its compression position, independent of the trunk element and having, in the expansion position, one end within one of the said axial channels and another end outside the trunk element.
    Type: Grant
    Filed: October 20, 1998
    Date of Patent: April 29, 2003
    Assignee: Corvita Europe
    Inventors: Jean-Pierre Georges Emile Dereume, Noureddine Frid
  • Patent number: 6309413
    Abstract: An endoluminal graft which is both expandable and supportive is provided either in a longitudinal form or in a bifurcated form. The graft expands between a first diameter and a second, larger diameter. The support component is an expandable stent endoprosthesis. A cover, liner, or a liner, or both a cover and a liner are applied to the endoprosthesis in the form of a stretchable wall material that is porous, elastomeric and biocompatible in order to allow normal cellular invasion upon implantation, without stenosis, when the expandable and supportive graft is at its second diameter. Preferably, the elastomeric wall material is a polycarbonate urethane.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: October 30, 2001
    Assignee: Corvita Corporation
    Inventors: Jean-Pierre Georges Emile Dereume, David C. MacGregor, Leonard Pinchuk
  • Publication number: 20010004707
    Abstract: Intraluminal prosthesis comprising a tubular trunk element (1), which is radially expandable and compressible and which axially has a cavity (2) open at its two ends and divided into several axial channels (7, 8), and at least one branch element (13) which is radially expandable and compressible and which axially has a cavity open at its two ends, being, in its compression position, independent of the trunk element and having, in the expansion position, one end within one of the said axial channels and another end outside the trunk element.
    Type: Application
    Filed: October 20, 1998
    Publication date: June 21, 2001
    Inventors: JEAN-PIERRE GEORGES EMILE DEREUME, NOUREDDINE FRID
  • Patent number: 6241738
    Abstract: Capturing device to be introduced into a tubular biological conduit of the human or animal body, includes a support sheath (1) having a first axial cavity (2), a pusher (3) capable of sliding in the said axial cavity, a first control permitting a relative displacement between the pusher and the support sheath, and flexible grippers including fastening elements (7) which are disposed peripherally on the pusher. The fastening elements extend forwards, inside the support sheath, and spread apart radially from one another outside the support sheath. The fastening elements (7) are each provided at their distal end with a hook capable of entering into engagement with an inner surface of a tubular article to be captured in the conduit and of compressing it radially by traction.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: June 5, 2001
    Inventor: Jean-Pierre Georges Emile Dereume
  • Patent number: 6165212
    Abstract: An endoluminal graft which is both expandable and supportive is provided either in a longitudinal form or in a bifurcated form. The graft expands between a first diameter and a second, larger diameter. The support component is an expandable stent endoprosthesis. A cover, liner, or a liner, or both a cover and a liner are applied to the endoprosthesis in the form of a stretchable wall material that is porous, elastomeric and biocompatible in order to allow normal cellular invasion upon implantation, without stenosis, when the expandable and supportive graft is at its second diameter. Preferably, the elastomeric wall material is a polycarbonate urethane.
    Type: Grant
    Filed: June 28, 1999
    Date of Patent: December 26, 2000
    Assignee: Corvita Corporation
    Inventors: Jean-Pierre Georges Emile Dereume, David C. MacGregor, Leonard Pinchuk
  • Patent number: 5948018
    Abstract: An endoluminal graft which is both expandable and supportive is provided either in a longitudinal form or in a bifurcated form. The graft expands between a first diameter and a second, larger diameter. The support component is an expandable stent endoprosthesis. A cover, liner, or a liner, or both a cover and a liner are applied to the endoprosthesis in the form of a stretchable wall material that is porous, elastomeric and biocompatible in order to allow normal cellular invasion upon implantation, without stenosis, when the expandable and supportive graft is at its second diameter. Preferably, the elastomeric wall material is a polycarbonate urethane.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: September 7, 1999
    Assignee: Corvita Corporation
    Inventors: Jean-Pierre Georges Emile Dereume, David C. MacGregor, Leonard Pinchuk
  • Patent number: 5871538
    Abstract: A luminal endovascular graft or endoprosthesis having a tubular support which expands between a first diameter and a second, larger diameter is provided with an expandable porous coating which is applied over either or both of the internal cylindrical surface and the external cylindrical surface of the tubular support. The first diameter allows the introduction of the luminal endoprosthesis into human or animal body passages. The expandable coating preferably is made from biocompatible fibers formed into a structure which allows normal cellular invasion upon implantation, without stenosis or restenosis, when the support element is at its second diameter.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: February 16, 1999
    Assignee: Corvita Corporation
    Inventor: Jean-Pierre Georges Emile Dereume
  • Patent number: 5723004
    Abstract: An endoluminal graft which is both expandable and supportive is provided either in a longitudinal form or in a bifurcated form. The graft expands between a first diameter and a second, larger diameter. The support component is an expandable stent endoprosthesis. A cover, liner, or a liner, or both a cover and a liner are applied to the endoprosthesis in the form of a stretchable wall material that is porous, elastomeric and biocompatible in order to allow normal cellular invasion upon implantation, without stenosis, when the expandable and supportive graft is at its second diameter. Preferably, the elastomeric wall material is a polycarbonate urethane.
    Type: Grant
    Filed: January 31, 1996
    Date of Patent: March 3, 1998
    Assignee: Corvita Corporation
    Inventors: Jean-Pierre Georges Emile Dereume, David C. MacGregor, Leonard Pinchuk
  • Patent number: 5653747
    Abstract: A luminal endovascular graft or endoprosthesis having a tubular support which expands between a first diameter and a second, larger diameter is provided with an expandable porous coating which is applied over either or both of the internal cylindrical surface and the external cylindrical surface of the tubular support. The first diameter allows the introduction of the luminal endoprosthesis into human or animal body passages. The expandable coating preferably is made from biocompatible fibers formed into a structure which allows normal cellular invasion upon implantation, without stenosis or restenosis, when the support element is at its second diameter.
    Type: Grant
    Filed: October 20, 1995
    Date of Patent: August 5, 1997
    Assignee: Corvita Corporation
    Inventor: Jean-Pierre Georges Emile Dereume
  • Patent number: 5639278
    Abstract: An endoluminal graft which is both expandable and supportive is provided in a form suitable for use in a bifurcated body vessel location. The graft expands between a first diameter and a second, larger diameter. The support component is an expandable stent endoprosthesis. A cover, a liner, or both a cover and a liner are applied to the endoprosthesis in the form of a stretchable wall material that is porous, elastomeric and biocompatible in order to allow normal cellular invasion upon implantation, without stenosis, when the expandable and supportive graft is at its second diameter. The supportive endoluminal graft is preferably provided as a plurality of components that are deployed separately at the bifurcated body vessel location.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: June 17, 1997
    Assignee: Corvita Corporation
    Inventors: Jean-Pierre Georges Emile Dereume, David C. MacGregor, Leonard Pinchuk
  • Patent number: 4692862
    Abstract: In a computer network having a central computer, a plurality of peripheral computers, and a time-shared common memory accessible to the network computers over a single bus connected to the common memory, an electronic switch of the telephone type is connected to all of the computers so that direct links may be established between respective members of one or more selected pairs of computers. Data is transmitted between computers via the direct links effected by the switch, and the bus is thus primarily reserved for access to the main memory for each of the computers. Direct links for transmitting data from a peripheral computer and another computer are established in accordance with connection orders sent from the peripheral computer to the central computer via the common memory. If the other computer is available to receive data, the central computer instructs the electronic switch to connect the peripheral computer directly to the receiving computer.
    Type: Grant
    Filed: December 11, 1985
    Date of Patent: September 8, 1987
    Assignee: Jeumont-Schneider Corporation
    Inventors: Daniel Cousin, Jean-Francois Garnier, Jean-Pierre Georges
  • Patent number: 4001524
    Abstract: A duplexer coupling a subscriber line of a PCM telephone system to a modulation channel and a demodulation channel comprises a plurality of transistorized amplifier stages with input connections from the demodulation channel and output connections to the modulation channel. The modulation channel is decoupled from the demodulation channel by being connected, directly or through one such amplifier stage, to a neutral point of a resistance network inserted between the demodulation channel and a transistor connecting the latter channel to the subscriber line; the neutral point may be the junction of two resistors or the output of an operational amplifier having inverting and noninverting inputs connected to cophasally energized points of the resistance network. Each of the two channels includes a filter and an associated amplifier which may be combined into an active filter of the Tchebycheff type. In the quiescent state of the system the power supply to the active filters may be cut off.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: January 4, 1977
    Assignee: Association des Ouvriers en Instruments de Precision
    Inventors: Lucien Pierre Emile Prudhon, Jean Pierre Georges Charil