Patent Assignment
Reel/Frame 024041/0238
Assignment of Assignor's Interest
Recorded: 2010-03-08
Pages: 2
Assignor
NA, CHANG HUN
Executed: 2009-09-09
Assignee
PIELDS ENGINEERING INC.
1406-1 & 1471, JEIPLATZ, 459-11, GASAN-DONG, GEUMCHEON-GU, SEOUL, 153-792, KOREA, REPUBLIC OF
Covered Property
(1)
Apparatus and Method for Mechanically Reducing Internal Pressure of Column in Refinery or Petrochemical Process