Chicago, Illinois
United States
15
2021-08-19
The entities that hold a legal rights for patent applications filed by inventor Julstrom Stephen D.:
Stephen D. Julstrom from Chicago, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Audio monitoring system
#2 | 2020-11-26System and method for reducing wind noise in an electronic hearing protector
#3 | 2019-06-13System and method for reducing wind noise in an electronic hearing protector
#4 | 2018-03-29Telecoil hum filter
#5 | 2016-11-03Telecoil hum filter
#6 | 2014-09-11Electronic earplug windscreen
#7 | 2011-04-14Rechargeable battery assemblies and methods of constructing rechargeable battery assemblies
#8 | 2011-04-14Systems and methods for maintaining a drive signal to a resonant circuit at a resonant frequency
#9 | 2011-04-14Magnetically coupled battery charging system
#10 | 2011-04-14Magnetically coupled battery charging system
#11 | 2011-04-14Magnetically coupled battery charging system
#12 | 2006-11-30Multi-coil coupling system for hearing aid applications
#13 | 2006-09-19Directional microphone assembly for mounting behind a surface
#14 | 2006-08-29Multi-coil coupling system for hearing aid applications
#15 | 2006-08-17Audio monitoring system
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