DM

David C. McChristian

AT AT&T: 1 patents #270 of 1,042Top 30%
📍 Naperville, IL: #48 of 183 inventorsTop 30%
🗺 Illinois: #1,021 of 4,484 inventorsTop 25%
Overall (1994): #144,821 of 165,921Top 90%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5287403 Method and apparatus for processing telephone calls charged to credit cards Jean Atkins, Richard Harris, Julie M. Ladieu-Walton 1994-02-15