Granted Patent
Utility
US 6,704,422 · App. 09/696,264
Method for controlling the directionality of the sound receiving characteristic of a hearing aid a hearing aid for carrying out the method
Inventor:
Lars Baekgaard Jensen
Patented Case
View Patent ↗
Granted: Mar 9, 2004
Filed: Oct 26, 2000
Inventor
Lars Baekgaard Jensen
Assignee (at issue)
Widex A/S
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.