Patents/Inventors

James D. Brown

Bloomington, INUS2 patents

2 Patents

US117864082023
Push-in Earplug and Method of Making the Same Using a Mandrel
3M Innovative Properties Company
0 cites
US117072102023
Acoustically Probed Over-the-ear Hearing Assessment Devices and Methods
3M INNOVATIVE PROPERTIES COMPANY
0 cites