Granted Patent
Utility
US 6,768,801 · App. 09/744,517
Hearing aid having improved speech intelligibility due to frequency-selective signal processing, and method for operating same
Inventors:
Frank Wagner, Fred Zoels
Patented Case
View Patent ↗
Granted: Jul 27, 2004
Filed: Mar 12, 2001
Inventors
Frank Wagner
Fred Zoels
Assignee (at issue)
Siemens Aktiengesellschaft
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.