Patents by Inventor George Georgiou

George Georgiou 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).

  • Protease-deficient bacterial strains for production of proteolytically sensitive polypeptides
    Patent number: 5264365
    Abstract: The invention relates to the construction of protease-deficient Escherichia coli hosts which when combined with an expression system are useful for the production of proteolytically sensitive polypeptides. The invention also includes examples of particular mutant EscherichiaThe United States Government may have certain rights in the present invention pursuant to the terms of Grant No. CBT-8657471 awarded by the National Science Foundation.
    Type: Grant
    Filed: November 9, 1990
    Date of Patent: November 23, 1993
    Assignee: Board of Regents, The University of Texas System
    Inventors: George Georgiou, Francois Baneyx
  • Fibre optic coupler
    Patent number: 4786130
    Abstract: A fibre-optic coupler has the claddings of two or more optical fibres partially fused together over a coupling region, and a body of light-transmissive material, having a variable refractive index, contacts the claddings at the coupling region, such that by varying the refractive index of said body light transmitted along one fibre is split between the fibres in a varying ratio.
    Type: Grant
    Filed: May 19, 1986
    Date of Patent: November 22, 1988
    Assignee: The General Electric Company, p.l.c.
    Inventors: George A. Georgiou, Anthony C. Boucouvalas
  • Interferometers
    Patent number: 4725141
    Abstract: A Mach Zehnder interferometer with arms of equal length is formed between two optic fibres. This is achieved by locating the lightly tensioned fibres in a generally parallel configuration and forming optical couplings between them at points which lie on the center-line of the configuration. Preferably the couplings are formed by a fused biconical tapering technique.
    Type: Grant
    Filed: August 1, 1985
    Date of Patent: February 16, 1988
    Assignee: The General Electric Company, p.l.c.
    Inventors: George A. Georgiou, Anthony C. Boucouvalas
  • Optical fibre coupling assemblies
    Patent number: 4548466
    Abstract: A coupling between an optical fibre (1) and an opto-electronic device e.g. a semiconductor laser (2) is located within a hermetically sealed housing (3,6). The device is supported on a header (14) mounted on the front wall (3) of the housing, the lead (16) to the device passes through the housing wall via a glass-to-metal seal (17,19,20), and the fibre is soldered into a ferrule (10) which is inserted through a boss (4) on the front housing wall. After alignment of the fibre with the device, the ferrule is clamped in position by two parallel sets of screws (11(a), 11(b)) inserted through the boss, and is then soldered to the boss. The housing, header, ferrule and metal component(s) of the glass-to-metal seal are all formed of the same metal, preferably gold-plated copper, to avoid differential expansion.
    Type: Grant
    Filed: September 29, 1983
    Date of Patent: October 22, 1985
    Inventors: Dain S. Evans, George A. Georgiou, Peter Mossman, Arabinda Mukherjee, John B. Whiscombe
  • Belt buckle
    Patent number: D312226
    Type: Grant
    Filed: April 4, 1988
    Date of Patent: November 20, 1990
    Inventor: George Georgiou