The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 24, 2001
Filed:
Jan. 26, 1999
Applicant:
Inventors:
Ronald Pethig, Gwynedd, GB;
Gerardus Hendricus Markx, Glossop, GB;
Assignee:
BTG International Limited, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 2/726 ; G01N 2/7447 ;
U.S. Cl.
CPC ...
G01N 2/726 ; G01N 2/7447 ;
Abstract
The behavior of particles is tested by placing a suspension of the particles in a chamber in which an electrode array is arranged to generate a spectrum of different frequency dielectrophoretic fields. The behavior of the particles at the different frequencies can be studied in a convenient and rapid manner. The apparatus and method can be used for a variety of purposes, including characterising the properties of specified particle types, or analysing the particle population in a fluid. It is also possible to expose the particles to different fluid parameters to extend the test spectrum in other senses.