DG

David C. Guthrie

📍 Chester Springs, PA: #83 of 227 inventorsTop 40%
🗺 Pennsylvania: #23,606 of 74,527 inventorsTop 35%
Overall (All Time): #1,611,799 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6611205 Gate operator safety system Charles P. Coggins 2003-08-26
D324511 Switch unit for a garage door operator or the like John F. Ginther, Kim E. Burrichter, Charles P. Coggins, Mark K. Lucchi 1992-03-10
D322386 Keyless lock John F. Ginther, Kim E. Burrichter, Charles P. Coggins, Mark K. Lucchi 1991-12-17