Granted Patent
Utility
US 6,690,215 · App. 09/942,449
Sigma-delta-based frequency synthesis
Inventors:
Earl W. McCune, Jr., Wendell B. Sander
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Aug 29, 2001
Inventors
Earl W. McCune, Jr.
Wendell B. Sander
Assignee (at issue)
Tropian, 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.