CJ

Christopher B. Walker, Jr.

3M: 1 patents #276 of 881Top 35%
Overall (2025): #421,248 of 469,880Top 90%
1
Patents 2025

Issued Patents 2025

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12418761 Diaphragm for microspeaker and manufacturing method thereof Chao Yang 2025-09-16