4. Patents 목록으로 돌아가기
10-2016-0167095 (2016.12.08) / 10-1743750 (2017.05.30)
10-2019-0106726 (2019.08.29) / 10-2289607 (2021.08.09)
10-2009-0119138 (2009.12.03) / 10-0947742 (2010.03.08)
12/759589 (2010.04.13) / 8367355 B2 (2013.02.05)