PATENT CLAIM ANALYSIS

Application Number: 16064507
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["356", "445000"]

Abstract:
The invention relates to a system for optically detecting particles ( 400 ) in a fluid ( 200 ). It comprises on the one hand a sensor platform ( 300 ) with a sensor surface ( 350 ) to receive said particles ( 400 ) and a material extending from the sensor surface ( 350 ) having a refractive index higher than the one of the fluid ( 200 ), such that an electromagnetic wave ( 10 ) propagating in this platform material ( 310 ) and incident to the sensor surface ( 350 ) at an angle greater than the critical optical angle is totally reflected onto the sensor surface ( 350 ). Said particles ( 400 ) comprise a metallic material ( 410 ) enabling a localized surface plasmon resonance at least one resonant wavelength(s) if excited at excitation wavelength(s). They are further arranged to be suspended in the fluid ( 200 ). On the other hand, the system comprises an optical detector ( 102 ) of at least a portion of the spectrum of the totally reflected wave ( 20 ), said portion including said at least one resonant wavelength(s). A processor is further arranged to determine a presence of said particles ( 400 ) on or close to the sensor surface ( 350 ) from the frustrated totally internal reflection (“FTIR”) signal retrieved from the detected wavelengths, wherein this retrieving takes into account the detected resonant component(s) present in the FTIR signal. The invention relates further to the sensor platform ( 300 ) per se, an analyzer and a method.

Claim (Index 13):
Method for optically detecting presence of at least one particle in a fluid, comprising:\n providing a sensor platform comprising a sensor surface over a transparent medium, and at least one particle arranged to be suspended in the fluid comprising a metallic material enabling a localized plasmon resonance at least one resonant wavelength(s) if excited at excitation wavelength(s); providing a fluid to the sensor platform, the refractive index of the fluid being lower than the refractive index of said transparent material; illuminating the sensor surface with an incident light through the transparent material such that it is totally reflected onto the sensor surface, the spectrum of the incident light comprises the excitation wavelength(s) of said at least one particle(s); detecting at least a portion of the spectrum of the optical wave which has been totally reflected, said portion including said at least one resonant wavelength(s); determining a presence of said at least one particle on or close to the sensor surface from the frustrated totally internal reflection (\u201cFTIR\u201d) signal retrieved from the detected wavelengths, wherein this retrieving takes into account the detected resonant component(s) present in the FTIR signal.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 94.0
- Lexical Diversity: 2.49573
- Patent Class: 356.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['11133632', '12531814', '10594698', '13334113', '13967331']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6931575479807652
- 35 USC 102 Novelty (BERT): 0.4780490496850891
- Combined Prediction Score: 0.6716466981511976
- Mean Citation Score: 198.15316
- Max Citation Score: 203.72627
- Similarity Product: 155.70376009327532

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test