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:
Mar. 14, 2023
Filed:
Apr. 26, 2018
Applicant:
Leadway (Hk) Limited, Hong Kong, CN;
Inventors:
Feng qin Fei, Hangzhou Zhejiang, CN;
Chunxia Zhang, Hangzhou Zhejiang, CN;
Tao Shang, Hangzhou Zhejiang, CN;
Assignee:
LEADWAY (HK) LIMITED, Hong Kong, CN;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 33/543 (2006.01); G01N 21/78 (2006.01); G01N 21/84 (2006.01); G01N 21/77 (2006.01); G01N 33/76 (2006.01);
U.S. Cl.
CPC ...
G01N 33/54388 (2021.08); G01N 21/78 (2013.01); G01N 21/8483 (2013.01); G01N 33/76 (2013.01); G01N 2021/7756 (2013.01); G01N 2021/7759 (2013.01); G01N 2470/04 (2021.08);
Abstract
A detection device (), comprising a sample detection layer () provided thereon with a detection reagent reacted with an analyte and a result display region (), wherein the device further comprises a symbol display layer () on which an indicator () is processed; after the indicator contacts with a gas which can change the color of the indicator, the indicator changes from a first color to a second color.