Granted Patent
Utility
US 6,441,067 · App. 09/934,705
Phosphorus-containing compounds and their use in flame retardance
Inventors:
Yie-Shun Chiu, Meng Jiang, Ying Liu
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: Aug 23, 2001
Inventors
Yie-Shun Chiu
Meng Jiang
Ying Liu
Assignee (at issue)
CHUNG-SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY
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.