Patents by Inventor David Landry

David Landry 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: 6342365
    Abstract: Substantially pure glycosidases capable for cleaving selected glycosidic bonds have been described including glycosidases isolated from Xanthomonas and recombinant glycosidases. Substrate specificity of isolated enzymes have been identified for GlcNac&bgr;1-X, Gal&agr;1-3R, Gal&agr;1-6R, Gal&bgr;1-3R, Fuc&agr;1-2R, Fuc&agr;1-3R, Fuc&agr;1-4R, Man&agr;1-2R, Man&agr;1-3R, Man&agr;1-6R, Man&bgr;1-4R, Xyl&bgr;1-2R, Glc&bgr;1-4R, and Gal&bgr;1-4R providing improved capability for selectively cleaving a glycosidic linkage in a carbohydrate substrate and for forming modified carbohydrates.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: January 29, 2002
    Assignee: New England Biolabs, Inc.
    Inventors: Sharon T. Wong-Madden, Ellen P. Guthrie, David Landry, Christopher H. Taron, Chudi Guan, Phillips W. Robbins
  • Patent number: 6300113
    Abstract: Substantially pure glycosidases capable for cleaving selected glycosidic bonds have been described including glycosidases isolated from Xanthomonas and recombinant glycosidases. Substrate specificity of isolated enzymes have been identified for GlcNac&bgr;1-X, Gal&agr;1-3R, Gal&agr;1-6R, Gal&bgr;1-3R, Fuc&agr;-2R, Fuc&agr;1-3R, Fuc&agr;1-4R, Man&agr;1-2R, Man&agr;1-3R, Man&agr;1-6R, Man&bgr;1-4R, Xyl&bgr;1-2R, Glc&bgr;1-4R, and Gal&bgr;1-4R providing improved capability for selectively cleaving a glycosidic linkage in a carbohydrate substrate and for forming modified carbohydrates.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: October 9, 2001
    Assignee: New England Biolabs Inc.
    Inventor: David Landry
  • Patent number: 6222975
    Abstract: A fiber administration system and method of operation that enables an owner of the fiber administration system to pay for only the external optical fiber cables used by that fiber administration system. The fiber administration system has at least one fiber distribution shelf on which are located a plurality of optical connection ports. Each of the optical connection ports terminate the end of a different external optical fiber. Each of the optical connection ports contains a sensor for detecting when that optical connection port is engaged by an optical coupling within the fiber administration system. A monitoring module is provided that is coupled to the sensor of each of the optical connection ports. The monitor module determines from each sensor whether or not an optical coupling has engaged each optical connection port and records when each of the optical connection ports is first engaged. The data record recorded by the monitor module can be accessed from a remote location for billing purposes.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: April 24, 2001
    Assignee: Lucent Technologies, Inc.
    Inventors: Albon E. Gilbert, Mark R. Jennings, David Landry, Frank S. Leone, Richard J. Pimpinella
  • Patent number: 5770405
    Abstract: Purified N-acetylglucosaminidase and .alpha.1-3,6 Galactosidase endogenous to Xanthomonas have been described. Substrate specificity of isolated enzymes have been identified from GlcNAc.beta.1-x and Gal.alpha.1-3R, Gal.alpha.1-6R, providing improved capability for selectively cleaving a glycosidic linkage in a carbohydrate substrate and for forming modified carbohydrates.
    Type: Grant
    Filed: June 24, 1996
    Date of Patent: June 23, 1998
    Assignee: New England Biolabs, Inc.
    Inventors: Sharon T. Wong-Madden, Ellen P. Guthrie, Christopher H. Taron, David Landry, Chudi Guan, Phillips W. Robbins
  • Patent number: 4549662
    Abstract: Transport apparatus is disclosed for moving a stream of objects along a substantially continuous path between a source and a collection station and past a viewing station. A stream of successive, spatially separated objects is moved into end-to-end abutment to form successive stacks of objects. Each stack is spiraled past the viewing station with minimal vibration to expose the complete surface of each object to inspection. Subsequently each stack is rearranged into spatially separated objects which are rapidly sorted by diverting those objects from the continuous path which do not conform to predetermined criteria upon inspection. The transport apparatus achieves high throughput without compromising the accuracy of the inspection process.
    Type: Grant
    Filed: March 25, 1982
    Date of Patent: October 29, 1985
    Assignee: General Electric Company
    Inventors: Frederick C. Schoenig, Jr., J. David Landry, Edward S. Walker, Ching C. Lai
  • Patent number: 4532723
    Abstract: An optical inspection system is disclosed which determines surface and other features of objects by illuminating them with a light beam having substantially uniform light intensity in space and time. The light beam is derived from a light source whose light intensity may vary in space and time. The surface features of each object are inspected by detecting light reflected from the object through a lens system which focuses the reflected light on an array of photosensitive elements. The output signals provided by the array may be used to provide a measure indicative of the conformance of the inspected surface to predetermined criteria. The inspection system is further capable of determining other features of the inspected object, such as the height of the object, by illuminating the object with a second light beam derived from a second light surface.
    Type: Grant
    Filed: March 25, 1982
    Date of Patent: August 6, 1985
    Assignee: General Electric Company
    Inventors: Truman F. Kellie, J. David Landry, Ching C. Lai