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:
Oct. 05, 1999
Filed:
Jul. 01, 1997
John S Midgely, Ilkley, GB;
Tepnel Medical Limited, Knutsford, Chesire, GB;
Abstract
An analytical device for use in determining the presence of an analyte species of interest in a liquid state includes a chromatographic membrane support along which the liquid may travel, a plurality of first detectable particles associated with a sampling region of the device at which the liquid is to be applied, the particles being capable of being moved along the support by the liquid travel and having immobilised thereon a first binding agent capable of forming a first complex with the analyte species, a threshold region provided downstream of the sampling region in the direction of liquid travel, the threshold region being provided with a second binding agent which is capable of binding to non-complexed first binding agent on the particles, and which is present in an amount, such that a detectable number of the particles only pass the threshold region if the amount of analyte species in the sample is above a predetermined level, and a detection region downstream of the threshold region in the direction of liquid travel, the detection region comprising a third binding agent capable of binding to the first complex on the particles.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile