Inventor
GONG JERRY J
US7 patents
Patents
7 patentsUSD812737SMar 13, 2018
Face mask
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USD811582SFeb 27, 2018
Face mask
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USD807509SJan 9, 2018
Replaceable filter element
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US10974007B2Apr 13, 2021
Facemask seal
SLEEPNET CORP4 citations71
USD820435SJun 12, 2018
Headgear
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US11998694B2Jun 4, 2024
Facemask seal
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USD892304SAug 4, 2020
Facemask pressure adjustment device
SLEEPNET CORP0 citations50