Granted Patent
Utility
US 6,525,464 · App. 09/657,574
Stacked light-mixing LED
Inventor:
Yuan-Cheng Chin
Patented Case
View Patent ↗
Granted: Feb 25, 2003
Filed: Sep 8, 2000
Inventor
Yuan-Cheng Chin
Assignee (at issue)
UNITY OPTO TECHNOLOGY CO., LTD.
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.