Donald Edward Coffey

📍 Littleton, CO: #696 of 1,939 inventorsTop 40%

🗺 Colorado: #17,029 of 40,980 inventorsTop 45%

Overall (All Time): #2,187,772 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6695538	Drainage pipe support/diverter system	—	2004-02-24
6517283	Cascading chute drainage system	—	2003-02-11