Granted Patent
Utility
US 6,818,385 · App. 10/341,290
Phase shifting circuit manufacture method and apparatus
Inventors:
Yao-Ting Wang, Yagyensh C. Pati
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Jan 13, 2003
Inventors
Yao-Ting Wang
Yagyensh C. Pati
Assignee (at issue)
Numerical Technologies, Inc.
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.