DL

Donald L. Lafferty

📍 San Francisco, CA: #11,477 of 26,999 inventorsTop 45%
🗺 California: #149,087 of 386,348 inventorsTop 40%
Overall (All Time): #1,659,614 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5270636 Regulating control circuit for photovoltaic source employing switches, energy storage, and pulse width modulation controller 1993-12-14
5027051 Photovoltaic source switching regulator with maximum power transfer efficiency without voltage change 1991-06-25
4873480 Coupling network for improving conversion efficiency of photovoltaic power source 1989-10-10