Kwon; O Chang

Patent Applications and Registrations

Patent applications and USPTO patent grants for Kwon; O Chang.The latest application filed is for "sound absorption device and method of manufacturing the same".

Company Profile

8.4.9

Kwon; O Chang - Seoul KR

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Rotating type foreign substance collection equipment Grant 10,933,354 - Moon , et al. March 2, 2	2021-03-02
Sound absorption device and Method of manufacturing the same App 20210043182 - MOON; Myoung-Woon ; et al.	2021-02-11
Hydrophilic material oil fence having double-porous mesh Grant 10,914,045 - Kim , et al. February 9, 2	2021-02-09
Oil fence with oil filtration membrane Grant 10,774,491 - Lee , et al. Sept	2020-09-15
Sound Absorption Structure And Method Of Manufacturing The Same App 20200193952 - MOON; Myoung-Woon ; et al.	2020-06-18
Hydrophilic Material Oil Fence Having Double-porous Mesh App 20200123726 - KIM; Seong Jin ; et al.	2020-04-23
Oil collecting apparatus and oil collecting system having the same Grant 10,400,409 - Lee , et al. Sep	2019-09-03
Rotating Type Foreign Substance Collection Equipment App 20190255467 - MOON; Myoung-Woon ; et al.	2019-08-22
Fence Having Hydrophilic Material App 20190257050 - MOON; Myoung-Woon ; et al.	2019-08-22
Spilled Oil Collecting Apparatus And Method App 20190161368 - MOON; Myoung Woon ; et al.	2019-05-30
Nozzle For Three-dimensional (3d) Printer Including Eccentric Discharge Port And 3d Printer Including Nozzle App 20180339451 - Moon; Myoung-Woon ; et al.	2018-11-29
Oil Collecting Apparatus And Oil Collecting System Having The Same App 20180179717 - Lee; Heon Ju ; et al.	2018-06-28
Oil Fence With Oil Filtration Membrane App 20180179718 - LEE; Heon Ju ; et al.	2018-06-28

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