Patents Assigned to Farfield Sensors Limited
  • Method for determining a qualitative characteristic of an interferometric component
    Patent number: 7333211
    Abstract: The present invention relates to a method for determining a qualitative characteristic of an interferometric component (eg a planar waveguide structure) or a process for determining a qualitative characteristic of a stimulus of interest to which the interferometric component (eg the planar waveguide structure) has been exposed by measuring a non-positional characteristic of the interference fringes.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: February 19, 2008
    Assignee: Farfield Sensors Limited
    Inventors: Neville John Freeman, Graham Cross, Gerard Anthony Ronan
  • Method of determining crystallization
    Patent number: 7232485
    Abstract: The present invention relates to a method for determining crystallization in a very small amount of a material of interest (eg a chemical or biological material of interest).
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: June 19, 2007
    Assignees: Council for The Central Laboratory Of The Research Councils, Farfield Sensors Limited
    Inventors: Gareth Jones, Neville John Freeman, Gerard Anthony Ronan, Marcus Swann, Attia Boudjemline
  • Sensor device for determining protein aggregation
    Publication number: 20060148099
    Abstract: The present invention relates to a sensor device and method for determining the extent of aggregation of a protein such as beta amyloid in a fluid (e.g. a bodily fluid).
    Type: Application
    Filed: October 31, 2003
    Publication date: July 6, 2006
    Applicant: Farfield Sensors Limited
    Inventors: Neville Freeman, Gerard Ronan, Marcus Swann, David Allsop, Susan Moore, Jon Popplewell
  • Sensor device
    Patent number: 7062110
    Abstract: The present invention relates to a sensor device and method for measuring a property associated with the introduction of or changes in a chemical, biological or physical stimulus in a localized environment, in particular to a sensor device and method for measuring the partition coefficient of a chemical stimulus such as a pharmaceutical compound.
    Type: Grant
    Filed: August 14, 2001
    Date of Patent: June 13, 2006
    Assignee: Farfield Sensors Limited
    Inventors: Neville John Freeman, Gerard Anthony Ronan, Marcus Swann, Graham Cross
  • Sensor assembly
    Patent number: 7050176
    Abstract: The present invention relates to a sensor assembly and method for measuring changes in dimension and/or composition of a sensor component (and associated factors) caused by the introduction of or changes in a chemical, physical or biological stimulus in a localized environment.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: May 23, 2006
    Assignee: Farfield Sensors Limited
    Inventors: Graham Cross, Neville John Freeman, Marcus Swann
  • Optical interferometer
    Publication number: 20050162659
    Abstract: The present invention relates to an integrated optical waveguide interferometer including a sensing waveguide with a path of interaction (with the localised environment) having different optical lengths, and to a method for determining the absolute status thereof after the introduction into the localised environment of (or changes in) a stimulus of interest and to a method for determining the absolute calibration status thereof before the introduction into the localised environment of (or changes in) a stimulus of interest.
    Type: Application
    Filed: March 13, 2003
    Publication date: July 28, 2005
    Applicant: Farfield Sensors Limited
    Inventors: Neville Freeman, Graham Cross, Gerard Ronan, Marcus Swann
  • Device for housing a planar optical component
    Patent number: 6701032
    Abstract: A device for housing a planar optical component such as a chemical sensor comprising a holder for mounting a planar optical component, a housing adapted to receive internally said holder along a longitudinal axis, and guiding means for correlating the position of said planar optical component and of a source of electromagnetic radiation when said holder is located within said housing.
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: March 2, 2004
    Assignee: Farfield Sensors Limited
    Inventors: Neville John Freeman, Benharrat Bouattou
  • Planar waveguide chemical sensor
    Patent number: 6335793
    Abstract: A chemical sensor includes at least two wave guides, one of which is a sensing wave guide and one of which is a reference wave guide. Each of the wave guides are formed in a laminar manner on a substrate.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: January 1, 2002
    Assignee: Farfield Sensors Limited
    Inventors: Neville John Freeman, Graham Hugh Cross