Gyeonggi-do
South Korea
4
2017-04-06
The entities that hold a legal rights for patent applications filed by inventor KUMARBRATA Das:
Das KUMARBRATA from Gyeonggi-do, KR has applied for patents for these inventions. The list has both pending applications and granted patents:
Method and apparatus for performing call switching
#2 | 2015-07-23Method and apparatus for performing call switching
#3 | 2014-06-12Mobile terminal and login control method thereof
#4 | 2014-05-22Method and apparatus for performing call switching
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