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:
Feb. 10, 2015
Filed:
Mar. 28, 2012
Jer-liang Andrew Yeh, Taichung, TW;
Shang-jr Gwo, Hsinchu, TW;
Jer-Liang Andrew Yeh, Taichung, TW;
Shang-Jr Gwo, Hsinchu, TW;
National Tsing Hua University, Hsinchu, TW;
Abstract
An acetone gas sensor apparatus, including: a chamber, used for containing a gas sample taken from a breath of a person; and an acetone gas sensor, placed in the chamber for generating an output current in response to an acetone concentration of the gas sample, the acetone gas sensor including: a substrate; a buffer layer, deposited on the substrate; an InN epilayer, deposited on the buffer layer for providing a current path for the output current; a first conductive contact, deposited on the InN epilayer for providing a drain contact; and a second conductive contact, deposited on the InN epilayer for providing a source contact.