IP Library Assignment 024041/0238
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
Patent: 8,752,576 →
Application: 12/719,052 →
Publication: US 2010/0288371