Granted Patent
Utility
US 6,175,334 · App. 09/286,823
Difference drive diversity antenna structure and method
Inventors:
Louis J. Vannatta, Hugh K. Smith, James P. Phillips, David Haub
Patented Case
View Patent ↗
Granted: Jan 16, 2001
Filed: Apr 6, 1999
Inventors
Louis J. Vannatta
Hugh K. Smith
James P. Phillips
David Haub
Assignee (at issue)
Motorola, 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.