Glen Ellyn, Illinois
United States
6
2013-11-28
The entities that hold a legal rights for patent applications filed by inventor Schafer David E.:
David E. Schafer from Glen Ellyn, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Low axial vibration receiver armature and assembly
#2 | 2010-11-11Low axial vibration receiver armature and assembly
#3 | 2008-02-26Apparatus and method for generating acoustic energy in a receiver assembly
#4 | 2007-01-16Vibration balanced receiver
#5 | 2006-04-20Apparatus for creating motion amplification in a transducer with improved linkage structure
#6 | 2005-01-06Apparatus and method for creating acoustic energy in a receiver assembly with improved diaphragms-linkage arrangement
546525 ⎘