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. 13, 2026
Filed:
Mar. 29, 2022
Nippon Muki Co., Ltd., Tokyo, JP;
NIPPON MUKI CO., LTD., Tokyo, JP;
Abstract
The filter pack incudes a filter medium having folds alternately repeated on upstream and downstream sides of airflow by a pleating process, at least one pair of upstream ventilation surfaces facing each other via the fold on the downstream side therebetween and into which the airflow flows, and at least one pair of downstream ventilation surfaces facing each other via the fold on the upstream side therebetween and from which the airflow flows out, and a plurality of space maintaining members formed on each of the upstream ventilation surfaces and each of the downstream ventilation surfaces to maintain spaces of each pair of upstream ventilation surfaces and each pair of downstream ventilation surfaces. The plurality of space maintaining members formed on the upstream ventilation surfaces are intermittently formed in a direction orthogonal to the fold.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile