DB

Don Barrett

ZP Zpower: 1 patents #3 of 4Top 75%
📍 Camarillo, CA: #35 of 106 inventorsTop 35%
🗺 California: #27,528 of 67,890 inventorsTop 45%
Overall (2019): #484,674 of 560,194Top 90%
1
Patents 2019

Issued Patents 2019

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10368166 Voltage regulator and control circuit for silver-zinc batteries in hearing instruments Troy W. Renken, Timothy W. Powers 2019-07-30