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.

Date of Patent:
Feb. 11, 2025

Filed:

Mar. 17, 2022
Applicants:

China University of Petroleum, Qingdao, CN;

China Shi Da Education Development Co., Ltd., Qingdao, CN;

Inventors:

Binglin Li, Qingdao, CN;

Yuliang Su, Qingdao, CN;

Binfei Li, Qingdao, CN;

Chao Zhang, Qingdao, CN;

Shouya Wu, Qingdao, CN;

Dongxia Li, Qingdao, CN;

Wendong Wang, Qingdao, CN;

Lei Li, Qingdao, CN;

Yongmao Hao, Qingdao, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/27 (2006.01); B01D 53/60 (2006.01); B01D 53/78 (2006.01); E21B 41/00 (2006.01);
U.S. Cl.
CPC ...
E21B 43/27 (2020.05); B01D 53/60 (2013.01); B01D 53/78 (2013.01); E21B 41/0057 (2013.01); B01D 2251/104 (2013.01); B01D 2251/106 (2013.01); B01D 2257/302 (2013.01); B01D 2257/404 (2013.01); B01D 2258/0283 (2013.01);
Abstract

The last sentence of the abstract has been deleted because it refers to purported merits of the invention. The abstract should not refer to purported merits or speculative applications of the invention and should not compare the invention with the prior art, therefore the abstract has been amended to delete the last sentence by Examiner's amendment.


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