Patents by Inventor Chris Marshall

Chris Marshall 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).

  • Device and method for identifying and quantifying layered substances
    Patent number: 5621332
    Abstract: An apparatus for identifying and measuring in real time substances overlying a surface comprises a plurality of electrodes, a temperature sensor, an electrode control system connected to the plurality of electrodes for defining an electric field, an amplitude and phase measurement system connected to the plurality of electrodes and to the electrode control system for measuring a plurality of currents responsive to the electric field and converting the currents to a measurement set and computer for storing a map comprising a partition of a vector space of predetermined characteristics of substances into regions of profiles corresponding to the substances which could be overlying the surface. The computer correlates the measurement set with the map thereby identifying and quantifying the substances overlying the surface and generates an output signal corresponding to the identity and quantity of substances overlying the surface.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: April 15, 1997
    Inventors: Stuart Inkpen, John Hall, Chris Nolan, Chris Marshall
  • Device and method for identifying and quantifying layered substances
    Patent number: 5394340
    Abstract: An apparatus for identifying and measuring in real time substances overlying a surface comprises a plurality of electrodes, a temperature sensor, an electrode control system connected to the plurality of electrodes for defining an electric field, an amplitude and phase measurement system connected to the plurality of electrodes and to the electrode control system for measuring a plurality of currents responsive to the electric field and converting the currents to a measurement set and computer for storing a map comprising a partition of a vector space of predetermined characteristics of substances into regions of profiles corresponding to the substances which could be overlying the surface. The computer correlates the measurement set with the map thereby identifying and quantifying the substances overlying the surface and generates an output signal corresponding to the identity and quantity of substances overlying the surface.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: February 28, 1995
    Assignee: Instrumar Limited
    Inventors: Stuart Inkpen, John Hall, Chris Marshall, Chris Brobeck, Chris Nolan
  • Sanitary fitting, especially kitchen faucet
    Patent number: D469159
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: January 21, 2003
    Assignee: Hansgrohe AG
    Inventor: Chris Marshall
  • Sanitary faucet
    Patent number: D469160
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: January 21, 2003
    Assignee: Hansgrohe AG
    Inventor: Chris Marshall
  • Sanitary faucet
    Patent number: D469161
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: January 21, 2003
    Assignee: Hansgrohe AG
    Inventor: Chris Marshall
  • Sanitary faucet
    Patent number: D469505
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: January 28, 2003
    Inventor: Chris Marshall
  • Sanitary faucet
    Patent number: D469506
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: January 28, 2003
    Assignee: Hansgrohe AG
    Inventor: Chris Marshall
  • Sanitary fitting, especially kitchen faucet
    Patent number: D469507
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: January 28, 2003
    Assignee: Hansgrohe AG
    Inventor: Chris Marshall
  • Sanitary fitting, especially kitchen faucet
    Patent number: D469508
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: January 28, 2003
    Assignee: Hansgrohe AG
    Inventor: Chris Marshall
  • Sanitary fitting, especially kitchen faucet
    Patent number: D469509
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: January 28, 2003
    Assignee: Hansgrohe AG
    Inventor: Chris Marshall
  • Sanitary fitting, especially kitchen faucet
    Patent number: D469510
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: January 28, 2003
    Assignee: Hansgrohe AG
    Inventor: Chris Marshall
  • Sanitary faucet
    Patent number: D469512
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: January 28, 2003
    Assignee: Hansgrohe AG
    Inventor: Chris Marshall
  • Sanitary faucet
    Patent number: D469513
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: January 28, 2003
    Assignee: Hansgrohe AG
    Inventor: Chris Marshall