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DONG KWANG ALPHA CO LTD

Overview
  • Total Patents
    24
About

DONG KWANG ALPHA CO LTD has a total of 24 patent applications. Its first patent ever was published in 2001. It filed its patents most often in Republic of Korea. Its main competitors in its focus markets civil engineering, control and packaging and shipping are CESTRONICS GMBH, IKON PRAEZISIONSTECHNIK and TECHSUMER.

Patent filings in countries

World map showing DONG KWANG ALPHA CO LTDs patent filings in countries
# Country Total Patents
#1 Republic of Korea 24

Patent filings per year

Chart showing DONG KWANG ALPHA CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Min Kyung Yang 15
#2 Min Gyeong Yang 4
#3 Choi Jong Uk 3
#4 Kim Sung Bae 3
#5 Ahn Sung Bong 1
#6 Byun Chang Geun 1
#7 Lee In Su 1

Latest patents

Publication Filing date Title
KR100619737B1 Button cover of door lock system
KR100637875B1 Button cover of door lock system
KR100631100B1 Sliding unit of door lock system
KR100581731B1 Backset of doorlock apparatus
KR100581735B1 Dead bolt locking structure of doorlock locking mechanism
KR20060114840A Back set for door lock device and locking structure thereby
KR100543863B1 Backset used for door lock
KR100516150B1 Door lock device lever assembly
KR100543831B1 Door lock device automatic and hand-operated control combined structure
KR100543866B1 Backset used for door lock
KR100543829B1 Doorlock device automatic and hand-operated control combined structure
KR20050103410A Sealing pad for digital door lock apparatus
KR20050092818A Door lock authentication system
KR20050045242A Door lock device
KR20050034456A Method and system for certificating multi-proximity card of door-lock
KR20050021153A Power supply apparatus of an electronic doorlock
KR20040098725A Method for opening the door-lock apparatus by authentication keys
KR20040009067A Backset used for door lock
KR20030084388A doorlock apparatus for crime prevention and backset of the apparatus
KR20030080504A Door lock apparatus with aram of invasion and method thereof