DM

David W. Mathew

AP Audio Precision: 5 patents #2 of 11Top 20%
Overall (All Time): #964,785 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
D920816 Audio analyzer 2021-06-01
D892082 Audio switcher 2020-08-04
D884515 Electric-acoustic testing device 2020-05-19
D884516 Audio analyzer 2020-05-19
D884517 Audio analyzer 2020-05-19