Patents by Inventor Anders Sparen

Anders Sparen 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: 6794670
    Abstract: The present invention relates to a method and an apparatus for use in performing a quantitative analysis of a turbid pharmaceutical sample, e.g. a tablet, a capsule or a similar sample forming a pharmaceutical dose. A pharmaceutical, turbid sample (24) is irradiated with an excitation beam (20) of radiation, e.g. near infrared radiation. The intensity of emitted radiation (30) from the sample (24) is detected as a function of both the wavelength of the emitted radiation and the photon propagation time through said sample (24). Optionally, the intensity of the emitted radiation (30) from the sample (24) is also detected in a spatially resolved manner.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: September 21, 2004
    Assignee: AstraZeneca AB
    Inventors: Staffan Folestad, Mats Josefson, Anders Sparén, Jonas Johansson
  • Patent number: 6354145
    Abstract: The present invention relates to a method for analyzing mixtures of components by a process selected from the group consisting of flow based separation processes and flow analysis processes. The method comprising the steps of: obtaining measurement signals by measuring process conditions at a plurality of positions throughout the system; applying signal processing to the measurement signals, said signal processing comprising multivariate data analysis for condensing the plurality of measurement signals to a smaller number of main signals being non-correlated; logging said main signals; and displaying said main signals versus time, where changes of said system conditions are indicated by one or more of the displayed main signals; detecting any error occurrence during an on going process, and determining what part of said system cause said error.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: March 12, 2002
    Assignee: AstraZeneca AB
    Inventors: Magnus Fransson, Lars Karlsson, Bengt Lagerholm, Anders Sparén
  • Patent number: 5842150
    Abstract: A method, based on UV/VIS/NIR/IR (including Raman spectroscopy), is provided for the qualitative and quantitative determination of quality parameters in pulp and paper and/or the organic content in effluents from pulp and paper production, by applying chemometric methods.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: November 24, 1998
    Assignee: Eka Chemicals AB
    Inventors: Lars Renberg, Anders Sparen