Granted Patent
Utility
US 6,784,313 · App. 10/263,643
Process for producing carboxylic acids
Inventors:
Chia-Jung Tsai, Yao Lung Liu, Hsi-Chin Tsai
Patented Case
View Patent ↗
Granted: Aug 31, 2004
Filed: Oct 4, 2002
Inventors
Chia-Jung Tsai
Yao Lung Liu
Hsi-Chin Tsai
Assignee (at issue)
China Petrochemical Development Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.