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:
May. 16, 2006
Filed:
Nov. 20, 2002
William Francis Houlton Dean, Cambridge, GB;
Mark Julian Stockdale, Harston, GB;
William Francis Houlton Dean, Cambridge, GB;
Mark Julian Stockdale, Harston, GB;
Ion Science Limited, Cambridgeshire, GB;
Abstract
An ionization detector includes a third (fence) electrode () between the counter electrode () and the sensing electrode (). The fence electrode () is maintained at or near the potential of the sensing electrode () and traps charge movement (electrolytic current) along the detector walls associated with condensation and/or contamination within the detector. In a photoionisation detector, the fence electrode is also adapted to trap photo-induced current originating from the cathode (). Current drawn from the fence electrode () provides a measure of the degree of contamination or condensation within the detector and of lamp efficiency.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile