Christopher Dougherty

Follow

Person

Doylestown, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Adjustable and convertible audio headphones
- Patent number 8,755,555
- Issue date Jun 17, 2014
- The Echo Design Group, Inc.
- Christopher Dougherty
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
ADJUSTABLE AND CONVERTIBLE AUDIO HEADPHONES
- Publication number 20130272560
- Publication date Oct 17, 2013
- Christopher Dougherty
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE