DS

Douglass Anderson Springer

📍 Aurora, CO: #411 of 1,215 inventorsTop 35%
🗺 Colorado: #17,029 of 40,980 inventorsTop 45%
Overall (All Time): #2,225,648 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6220719 Renewable energy flashlight Steven Vetorino, James Victor Platt 2001-04-24
5975714 Renewable energy flashlight Steven Vetorino, James Victor Platt 1999-11-02