David W. Mathew

AP Audio Precision: 5 patents #2 of 11Top 20%

📍 Portland, OR: #2,786 of 9,213 inventorsTop 35%

🗺 Oregon: #7,313 of 28,073 inventorsTop 30%

Overall (All Time): #964,785 of 4,157,543Top 25%

Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #	Title	Co-Inventors	Date
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