Patents/Inventors

David M. Chenal

Frederic, WIUS6 patents

7 Patents

USD10666432025
Earpiece
JMJ Holdings, LLC
0 cites
US122505112025
Apparatus and Method for Tuned-frequency-spectrum Earpiece
JMJ Holdings, LLC
0 cites
US122505232025
Apparatus and Method for an Earpiece
JMJ Holdings, LLC
0 cites
USD10453932024
Earpiece-foam Sizing Tool
JMJ Holdings, LLC
0 cites
US120477322024
Tuned-frequency-spectrum Earpiece
JMJ Holdings, LLC
0 cites
US118262312023
Earpiece-foam Sizing Apparatus and Method
JMJ Holdings, LLC
0 cites
USD09857532023
Earpiece Assembly
JMJ Holdings, LLC
0 cites