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:
Oct. 18, 2022
Filed:
Mar. 19, 2019
Applicant:
Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Hubei, CN;
Inventor:
Xuanyun Wang, Hubei, CN;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 19/00 (2006.01); B01D 36/00 (2006.01);
U.S. Cl.
CPC ...
B01D 19/0031 (2013.01); B01D 19/0068 (2013.01); B01D 36/001 (2013.01);
Abstract
A filtering device and a filtering method are provided. The filtering device includes a bubble filtering system. The bubble filtering system at least includes a first bubble filtering system and a second bubble filtering system. The first bubble filtering system configured for performing a first bubble filtration in the solution. The second bubble filtering system configured for performing a second bubble filtration in the solution. Filter fineness of the second bubble filtering system is higher than filter fineness of the first bubble filtering system.