JM

John Lloyd Matejczyk

📍 Oakland, CA: #2,828 of 4,380 inventorsTop 65%
🗺 California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #3,176,871 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8542846 Vehicle sound enhancing system and method of producing John H. Miller 2013-09-24