Granted Patent
Utility
US 6,134,329 · App. 08/926,320
Method of measuring and preventing unstable feedback in hearing aids
Inventors:
Shawn X. Gao, Sigfrid D. Soli
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Sep 5, 1997
Inventors
Shawn X. Gao
Sigfrid D. Soli
Assignee (at issue)
House Ear Institute
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.