A62C 2/18

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9868003 Fire damper for ventilating fanOct 13, 16Jan 16, 18PANASONIC CORPORATION, PANASONIC ECOLOGY SYSTEMS GUANGDONG CO., LTD.,
9616260 Horizontally deployable smoke/fire curtain assemblyJun 24, 15Apr 11, 17SMOKE GUARD, INC.
9533179 Fire damper for ventilating fanJul 26, 11Jan 03, 17PANASONIC CORPORATION, PANASONIC ECOLOGY SYSTEMS GUANGDONG CO., LTD.,
9452304 Non-directional smoke control damper having chain gear type blade advancing/retreating deviceFeb 14, 13Sep 27, 16DAELIM INDUSTRIAL CO., LTD.
9283413 Fire curtain assembly and method of useApr 02, 15Mar 15, 16POLO CUSTOM PRODUCTS
8491363 Air damper system for domestic cooling and/or freezingJan 22, 09Jul 23, 13EMZ-HANAUER GMBH & CO. KGAA
8251786 Protection device for ventilation ductsAug 29, 08Aug 28, 12Not available
5188186 Barricade for isolating open areas from spreading fire or smokeNov 16, 90Feb 23, 93Not available