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Douglas Craig Kroupa

AT AT&T: 1 patents #270 of 1,042Top 30%
📍 Lisle, IL: #13 of 46 inventorsTop 30%
🗺 Illinois: #1,021 of 4,484 inventorsTop 25%
Overall (1994): #141,070 of 165,921Top 90%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5311569 Line-based public safety answering point Joseph M. Brozovich, Nicholas DeVito, Paul E. Renn, Paul M. Simek, David A. Snyder +1 more 1994-05-10