«Ear Protective Devices

Below is an extended Ear Protective Devices patents listing. Click here to return to the Ear Protective Devices main in depth entry.

Patents :
US Patent No.	Title
7243990	Sunshade apparatus
4670911	Attachable ear covering for sport activities
4512834	Method of making reduced noise positive drive power transmission system
4441576	Nonlinear passive acoustic filtering
4416649	Reduced noise positive drive power transmission system
4372904	Method for making an ear plug
4353364	Ear acoustical attenuating device
4347631	Ear muff accessory for safety hard hat
4316290	Ear muff accessory for safety hard hat
5022420	Lawn mower shade apparatus
5483027	Earplug with form-fitting fluid chambers
7197773	Lightweight, disassemblable and interchangable protective headgear for wrestlers
7020903	Combination eye and ear protection apparatus
7020901	Eye and ear protection apparatus
6728974	Safety goggles with earplugs
6715156	Reversible protective headgear for wrestlers
6237157	Ear protection cap
5718002	Hearing protective eyewear
5689831	Disposable ear cover
4262863	Powered hang glider with reduction drive

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