Granted Patent
Utility
US 6,815,519 · App. 10/103,286
Acidic fluorine-containing poly (siloxane amideimide) silica hybrids
Inventors:
Yie-Shun Chiu, Hsing-Tsai Huang, Te-Chuan Chang, Gaw-Pying Wang, Yaw-Shun Hong
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: Mar 22, 2002
Inventors
Yie-Shun Chiu
Hsing-Tsai Huang
Te-Chuan Chang
Gaw-Pying Wang
Yaw-Shun Hong
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.