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:
Nov. 03, 2015
Filed:
Sep. 25, 2007
Applicants:
Matthew Hart, London, GB;
Andrew Koehl, Cambridge, GB;
Inventors:
Matthew Hart, London, GB;
Andrew Koehl, Cambridge, GB;
Assignee:
Owlstone Limited, Cambridge, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 49/00 (2006.01); H01J 49/06 (2006.01); G01N 27/62 (2006.01); H01J 49/42 (2006.01);
U.S. Cl.
CPC ...
H01J 49/061 (2013.01); G01N 27/622 (2013.01); H01J 49/0018 (2013.01); H01J 49/421 (2013.01);
Abstract
An ion filter () for use in ion mobility spectrometry is described, together with a method for manufacturing the filter. The filter () is manufactured by removing portions from a monolithic structure to form a pair of electrodes which remain mechanically connected. The connecting portion () provides sufficient electrical impedance between the electrodes to effectively electrically separate the electrodes. The connecting portion may be doped or chemically modified to obtain a desired impedance, or this may be obtained through appropriate selection of physical dimensions.