Granted Patent
Utility
US 4,866,382 · App. 07/117,036
Magnetic rotary encoder system having a multi-element magnetoresistive sensor
Inventors:
Ralph H. Carmen, Peter Campbell
Patented Case
View Patent ↗
Granted: Sep 12, 1989
Filed: Nov 4, 1987
Inventors
Ralph H. Carmen
Peter Campbell
Assignee (at issue)
Superior Electron, 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.