Patents by Inventor Annika M. Rosengren

Annika M. Rosengren 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).

  • Method and apparatus for detecting pharmaceuticals in a sample
    Patent number: 8841633
    Abstract: A method and apparatus for measuring a vitamin K antagonizing anticoagulant present in a sample (116), arranged to: irradiate (304) the sample (116) with light from a light source (114) for exciting the anticoagulant through its absorption of the light, the excitation of the sample (116) resulting in a fluorescent emission from the sample (116); measure (306) the fluorescent emission from the sample (116); determine (308) a fluorescence lifetime (T1) of the fluorescent emission of the sample (116); determine (310) an intensity (A1) of the fluorescent emission at the fluorescence lifetime (T1); and determine (312) a amount (c) of the anticoagulant, as a function of the intensity (A1) of the fluorescent emission at the fluorescence lifetime (T1).
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: September 23, 2014
    Inventors: Ian A Nicholls, Bjorn C.G. Karlsson, Annika M Rosengren, Per Ola Andersson
  • METHOD AND APPARATUS FOR DETECTING PHARMACEUTICALS IN A SAMPLE
    Publication number: 20120032095
    Abstract: A method and apparatus for measuring a vitamin K antagonizing anticoagulant present in a sample (116), arranged to: irradiate (304) the sample (116) with light from a light source (114) for exciting the anticoagulant through its absorption of the light, the excitation of the sample (116) resulting in a fluorescent emission from the sample (116); measure (306) the fluorescent emission from the sample (116); determine (308) a fluorescence lifetime (?1) of the fluorescent emission of the sample (116); determine (310) an intensity (A1) of the fluorescent emission at the fluorescence lifetime (?1); and determine (312) a amount (c) of the anticoagulant, as a function of the intensity (A1) of the fluorescent emission at the fluorescence lifetime (?1).
    Type: Application
    Filed: March 25, 2010
    Publication date: February 9, 2012
    Inventors: Ian A. Nicholls, Bjorn C.G. Karlsson, Annika M. Rosengren, Per Ola Andersson