Patents by Inventor David M. Harrison

David M. Harrison 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: 11970479
    Abstract: The present invention is directed to cinnolinyl and quinolinyl pyrazol-4-yl-pyridine compounds which are allosteric modulators of the M4 muscarinic acetylcholine receptor. The present invention is also directed to uses of the compounds described herein in the potential treatment or prevention of neurological and psychiatric disorders and diseases in which M4 muscarinic acetylcholine receptors are involved. The present invention is also directed to compositions comprising these compounds. The present invention is also directed to uses of these compositions in the potential prevention or treatment of such diseases in which M4 muscarinic acetylcholine receptors are involved.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: April 30, 2024
    Assignees: Merck Sharp & Dohme LLC, MSD R&D (China) Co. LTD.
    Inventors: John J. Acton, III, Melissa Egbertson, Xiaolei Gao, Scott T. Harrison, Timothy J. Henderson, Michael Man-Chu Lo, Robert D. Mazzola, Jr., Zhaoyang Meng, James Mulhearn, Vanessa L. Rada, Jeffrey W. Schubert, Oleg B. Selyutin, David M. Tellers, Ling Tong, Fengqi Zhang, Jianming Bao, Chunsing Li
  • Patent number: 6240074
    Abstract: A secure communication hub (10) relays local communications between low probability of intercept (LPI) user radio equipment (68) and provides a secure interface with a command center (58) through a non-geostationary commercial satellite communication system. The secure communication hub (10) includes different radio interface units (12) for communicating different data formats with the (LPI) user radio equipment (68). Encryption and decryption circuitry (18) provides for different security levels and different keys for the (LPI) user radio equipment. Links with the satellite system are secured using encryption.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: May 29, 2001
    Assignee: Motorola, Inc.
    Inventors: Ronald V. Chandos, William R. Worger, David M. Harrison
  • Patent number: 5612948
    Abstract: A cellular communication network (10) and method operates at frequencies above 2 GHz and achieves widespread coverage within a cell (14) by adapting routing channels, symbol rates, and FEC coding processes (78) to current RF broadcast conditions. A portion of subscriber nodes (16) act as repeaters for a base node (12). If subscriber nodes (16) cannot directly communicate with the base node (12), their communications may be indirectly routed to the base node (12) through one or more repeating subscriber nodes (16'). If current conditions do not support a high data rate, then lower data rates are supported by selection of FEC coding processes (78). If increasingly inclusive FEC coding does not achieve a data rate supportable by current conditions, slower symbol rates may be used. Communications at slower symbol rates may utilize narrower frequency bands thus keeping wider frequency bands available for higher speed usage.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: March 18, 1997
    Assignee: Motorola, Inc.
    Inventors: Bruce A. Fette, Peter J. Leahy, David M. Harrison
  • Patent number: 5406630
    Abstract: A tamperproof arrangement for an integrated circuit device. The arrangement includes a package and lid fabricated of heavy metals to prevent X-radiation or infrared detection of circuit operation. Sensors and control circuitry are located on the integrated circuit die itself which detect increased temperature and radiation and clear or zeroize any sensitive information included within the integrated circuit device. Electrode finger grids above and below the integrated circuit die detect physical attempts to penetrate the integrated circuit die. Critical circuit functions are segregated from non-critical functions. Power applied to the integrated circuit device is monitored and separated for critical and non-critical circuit functions.
    Type: Grant
    Filed: January 10, 1994
    Date of Patent: April 11, 1995
    Assignee: Motorola, Inc.
    Inventors: Gerald V. Piosenka, David M. Harrison, Ronald V. Chandos
  • Patent number: 5389738
    Abstract: A tamperproof arrangement for an integrated circuit device. The arrangement includes a package and lid fabricated of heavy metals to prevent X-radiation or infrared detection of circuit operation. Sensors and control circuitry are located on the integrated circuit die itself which detect increased temperature and radiation and clear or zeroize any sensitive information included within the integrated circuit device. Electrode finger grids above and below the integrated circuit die detect physical attempts to penetrate the integrated circuit die. Critical circuit functions are segregated from non-critical functions. Power applied to the integrated circuit device is monitored and separated for critical and non-critical circuit functions.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: February 14, 1995
    Assignee: Motorola, Inc.
    Inventors: Gerald V. Piosenka, David M. Harrison, Ronald V. Chandos
  • Patent number: 4683922
    Abstract: A particle deflector located between a particle feed stream of dissimilar particles and a collection receptacle. The deflector has a deflector surface facing the on coming particle feed stream. The particles are deflected by the surface and are collected in the receptacle. The surface defined by the collected particles is substantially flat and the dissimilar particles do not segregate.
    Type: Grant
    Filed: January 24, 1986
    Date of Patent: August 4, 1987
    Assignee: Allied Corporation
    Inventors: David M. Harrison, Robert P. Gentili, George N. Bellucci
  • Patent number: 4270252
    Abstract: Apparatus is disclosed to count and control crimps in a moving tow of yarn. The apparatus comprises a target (the tow of yarn), a stroboscopic light, condenser lens, mirror, transparent support for the target, focusing lens, diode array to sense variations in light intensity from the striations in the target, electronic board circuit with terminal board, programmable calculator, and read-out means, such as a light emitting diode display. When used to control the crimping apparatus it also comprises a controller, exit control gate of the crimper and means to exert pressure on the exit control gate. The method for use of this apparatus is to cause an intense light pulse to issue from the stroboscopic light, passing the pulse of light through the condenser lens against the mirror through the transparent support to reflect from the striations in the yarn tow back through the focusing lens into the diode array which counts the variations in light intensity caused by the striations.
    Type: Grant
    Filed: January 3, 1978
    Date of Patent: June 2, 1981
    Assignee: Allied Chemical Corporation
    Inventors: David M. Harrison, Walter E. Watson, III, Maurice S. Moore, Roger E. Jermyn
  • Patent number: 4248581
    Abstract: A spinnerette (60, 70, 80) is provided for use in a process in which one or more ends of individual filaments are extruded from a plurality of orifices (61, 71, 81) of the spinnerette (60, 70, 80). The orifices of each end are arranged in a pattern which bounds a predetermined area of the spinnerette. The pattern consists of at least 5 substantially parallel rows, the orifices being equispaced within a given row for substantially all of the rows. The perpendicular distance between rows going from one side of the pattern to the other on an average progressively increases per row by a percentage, preferably about 1 to 10 percent, of the orifice spacing on the row closest to a line parallel to the rows and bisecting the pattern.
    Type: Grant
    Filed: September 5, 1979
    Date of Patent: February 3, 1981
    Assignee: Allied Chemical Corporation
    Inventor: David M. Harrison