Daejeon
South Korea
3
2009-04-23
The entities that hold a legal rights for patent applications filed by inventor Ryu Hai-Il:
Hai-Il Ryu from Daejeon, KR has applied for patents for these inventions. The list has both pending applications and granted patents:
Functional cornstalk board and preparation method thereof
#2 | 2009-01-22Manufacturing method of mechanical pulp from cornstalk cellulose
#3 | 2007-05-03Manufacturing method of semichemical mechanical pulp from cornstalk
3859950 ⎘