Patents by Inventor René Martin

René Martin 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: 6355436
    Abstract: The present invention relates to a procedure for the qualitative and/or quantitative analysis of biological substances, which are preferably biological substances, that are present in a conductive liquid medium, with the aid of at least one affinity sensor that includes at least one structure that includes at least one semiconductor material, which is coated on one of its surface with at least one layer of an isolating material, which in turn is affixed adhesively to at least one sensitive membrane, which is in contact with the conductive medium and which includes ligands that are complementary to the biological substances in question and which are capable of, and suitable for, forming pairs specifically with the latter biological substances, with the said procedure being characterized by the fact that it consists essentially of applying a voltage between the semiconductor and the conductive medium; of gathering the variations in the electrical signals induced by a charge-effect phenomenon directly and essent
    Type: Grant
    Filed: September 12, 2000
    Date of Patent: March 12, 2002
    Assignees: L'Ecole Centrale de Lyon, Le Centre National de la Recherche Scientifique
    Inventors: Jean-Rene Martin, Eliane Souteyrand, Marcus Francois Lawrence, Susan Rosalie Mikkelsen
  • Publication number: 20010027850
    Abstract: The process of the present invention purposefully precipitates a portion of the dissolved lignin onto pulp fibers to improve pulp yield of unbleached pulp. The resulting retention of lignin on the pulp creates an increase in pulp yield. Washing the pulp in a series of washer stages sequentially removes entrained lignin. Between each of the washer stages, adding dilution water repulps a pulp mat that exits from a prior washer stage and creates a pulp stream for a next washer stage. After at least one of the washer stages, adding an acidifying agent to the pulp stream forms a pulp product by precipitating the entrained lignin onto cellulosic fibers contained in the pulp stream. Finally, the process removes the pulp product from the series of washer stages with the pulp product having at least about a 1 unit increase in Kappa number.
    Type: Application
    Filed: March 22, 2001
    Publication date: October 11, 2001
    Inventors: Pierre Henri Rene Martin, Jacobo Kogan, Ka Kee Ho, Peter Campbell
  • Patent number: 6245196
    Abstract: The process of the present invention purposefully precipitates a portion of the dissolved lignin onto pulp fibers to improve pulp yield of unbleached pulp. The resulting retention of lignin on the pulp creates an increase in pulp yield. Washing the pulp in a series of washer stages sequentially removes entrained lignin. Between each of the washer stages, adding dilution water repulps a pulp mat that exits from a prior washer stage and creates a pulp stream for a next washer stage. After at least one of the washer stages, adding an acidifying agent to the pulp stream forms a pulp product by precipitating the entrained lignin onto cellulosic fibers contained in the pulp stream. Finally, the process removes the pulp product from the series of washer stages with the pulp product having at least about a 1 unit increase in Kappa number.
    Type: Grant
    Filed: February 2, 1999
    Date of Patent: June 12, 2001
    Assignee: Praxair Technology, Inc.
    Inventors: Pierre Henri Rene Martin, Jacobo Kogan, Ka Kee Ho, Peter Campbell
  • Patent number: 6150106
    Abstract: The present invention relates to a procedure for the qualitative and/or quantitative analysis of biological substances, which are preferably biological substances, that are present in a conductive liquid medium, with the aid of at least one affinity sensor that includes at least one structure that includes at least one semiconductor material, which is coated on one of its surface with at least one layer of an isolating material, which in turn is affixed adhesively to at least one sensitive membrane, which is in contact with the conductive medium and which includes ligands that are complementary to the biological substances in question and which are capable of, and suitable for, forming pairs specifically with the latter biological substances, with the said procedure being characterized by the fact that it consists essentially of applying a voltage between the semiconductor and the conductive medium; of gathering the variations in the electrical signals induced by a charge- effect phenomenon directly and essen
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: November 21, 2000
    Inventors: Jean-Rene Martin, Eliane Souteyrand, Marcus Francois Lawrence, Susan Rosalie Mikkelsen
  • Patent number: 6081915
    Abstract: Method and apparatus for reducing the time required to test an integrated circuit (10) using slew rate control. Using a very slow slew rate during normal operation may reduce electromagnetic interference, while using a faster slew rate during testing may reduce the test costs. In one embodiment, terminal control circuitry (40) includes a fast test control bit (50) to select a slow slew rate during normal operation, to select a faster slew rate during functional testing, and to optionally select a variety of slew rates during a special test to more fully characterize the behavior of integrated circuit (10). In one embodiment, each pre-driver circuit (80, 81) includes a low resistance device (61, 63) which may be selectively enabled or disabled to join with capacitors (66, 67) in output driver (82) to affect the slew rate of the signal driven as an output by integrated circuit terminal (83).
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: June 27, 2000
    Assignee: Motorola, Inc.
    Inventors: Seshagiri Prasad Kalluri, Rene Martin Delgado
  • Patent number: 5995741
    Abstract: A simulation tool (ES) for a networking code (RE), characterized in that the code is carried in a computer (ORD) external to the system, the tool constituting an application for the operating system (NY) of the computer by being considered to be a virtual core (CC), and including at least the communications layer code, unmodified and compiled in the internal language of the computer (CC); the basic services for the virtual core, which are connected to said code (CONFIG, RA, SI, GH); a number (m) of libraries (L.sub.1 -L.sub.m) for access to the code (CC) for a number (n) of test applications (A.sub.1 -A.sub.n) of the latter code. The tool has particular utility in debugging networking codes.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: November 30, 1999
    Assignee: Bull S.A.
    Inventors: Pascal Bonnet, Fran.cedilla.ois Machet, Rene Martin
  • Patent number: 5869244
    Abstract: The present invention relates to a procedure for the qualitative and/or quantitative analysis of biological substances, which are preferably biological substances, that are present in a conductive liquid medium, with the aid of at least one affinity sensor that includes at least one structure that includes at least one semiconductor material, which is coated on one of its surface with at least one layer of an isolating material, which in turn is affixed adhesively to at least one sensitive membrane, which is in contact with the conductive medium and which includes ligands that are complementary to the biological substances in question and which are capable of, and suitable for, forming pairs specifically with the latter biological substances, with the said procedure being characterized by the fact that it consists essentially of applying a voltage between the semiconductor and the conductive medium; of gathering the variations in the electrical signals induced by a charge-effect phenomenon directly and essent
    Type: Grant
    Filed: May 17, 1996
    Date of Patent: February 9, 1999
    Inventors: Jean-Rene Martin, Eliane Souteyrand, Marcus Francois Lawrence, Susan Rosalie Mikkelsen
  • Patent number: 4683448
    Abstract: High sensitivity interferential electro-optical modulator. The invention concerns an interferential electro-optical modulator. This modulator contains a Mach-Zehnder integrated interferometer in which each interferometer arm (24, 26) is overlapped by an electrode (40, 42), itself surrounded by two lateral electrodes (44, 46, 48, 50) to uniformize the electrical field crossing through each arm perpendicular to the face of the electro-optical crystall on which it is formed. Application to the detection of accoustic waves and low voltage measurement.
    Type: Grant
    Filed: January 9, 1985
    Date of Patent: July 28, 1987
    Assignee: Compagnie Generale D'Electricite
    Inventors: Christian Duchet, Rene Martin