CW

Christopher C. Willis

📍 Naperville, IL: #1,350 of 3,051 inventorsTop 45%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,076,953 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8515386 Emergency services for voice over IP telephony (E-VoIP) Dennis J. Hasenfang 2013-08-20
7933580 Emergency services for voice over IP telephony (E-VoIP) Dennis J. Hasenfang 2011-04-26