John Matthew Johnson

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Portland, OR, US

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Patents Grantslast 30 patents

Information Patent Grant
Earplug insertion device
- Patent number 8,955,519
- Issue date Feb 17, 2015
- J3 Group, LLC
- Shawn Matthew Johnson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Earplug insertion device
- Patent number 8,616,213
- Issue date Dec 31, 2013
- J3 Group, LLC
- Shawn Matthew Johnson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
Earplug Insertion Device
- Publication number 20140069443
- Publication date Mar 13, 2014
- J3 Group, LLC
- Shawn Matthew Johnson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Earplug Insertion Device
- Publication number 20090266369
- Publication date Oct 29, 2009
- J3 Group, LLC
- Shawn Matthew Johnson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE