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:
Apr. 22, 2008
Filed:
Aug. 04, 2004
Applicant:
Anthony C. Gilby, Foxborough, MA (US);
Inventor:
Anthony C. Gilby, Foxborough, MA (US);
Assignee:
Waters Investments Limited, New Castle, DE (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/00 (2006.01); G01N 1/10 (2006.01); G01N 21/47 (2006.01); G01N 21/05 (2006.01); G01N 21/85 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention is directed to the use of a light absorbing wall material to eliminate stray light paths in light-guiding structures, such as those used for HPLC absorbance detection. More specifically, the present invention relates to the use of carbon-doped Teflon® AF, or 'black Teflon® AF,' for all or part of the walls of a light-guiding flowcell adapted for use in HPLC absorbance detection.