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. 27, 2025
Filed:
Dec. 09, 2021
National Taiwan Normal University, Taipei, TW;
Chia-Jung Lu, Taipei, TW;
Rih-Sheng Jian, New Taipei, TW;
NATIONAL TAIWAN NORMAL UNIVERSITY, Taipei, TW;
Abstract
A formaldehyde detecting device includes a formaldehyde detecting unit which includes a formaldehyde detecting layer, a diffusion restricting member and a concentration indicator. The formaldehyde detecting layer includes a formaldehyde detecting material that develops color when reacting with formaldehyde. The diffusion restricting member is disposed on the formaldehyde detecting layer and permits a restricted amount of formaldehyde to pass therethrough to react with the formaldehyde detecting material. Concentration of formaldehyde is determined based on a color change on the formaldehyde detecting layer, and is indicated by the concentration indicator.