Granted Patent
Utility
US 6,020,876 · App. 08/839,249
Force feedback interface with selective disturbance filter
Inventors:
Louis B. Rosenberg, Dean C. Chang
Patented Case
View Patent ↗
Granted: Feb 1, 2000
Filed: Apr 14, 1997
Inventors
Louis B. Rosenberg
Dean C. Chang
Assignee (at issue)
Immersion, LLC
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.