DH

Dennis J. Hasenfang

📍 Waterford, WI: #6 of 13 inventorsTop 50%
🗺 Wisconsin: #1,040 of 3,572 inventorsTop 30%
Overall (2011): #317,369 of 364,097Top 90%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7933580 Emergency services for voice over IP telephony (E-VoIP) Christopher C. Willis 2011-04-26