DH

David W. Hagelbarger

BL Bell Telephone Laboratories: 2 patents #297 of 1,445Top 25%
AT AT&T: 1 patents #10,626 of 18,772Top 60%
📍 Morristown, NJ: #499 of 1,322 inventorsTop 40%
🗺 New Jersey: #23,480 of 69,400 inventorsTop 35%
Overall (All Time): #1,664,387 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5009477 Optical interconnect arrangement Rodney C. Alferness, Zigmantas L. Budrikis, Herwig Werner Kogelnik, Arun N. Netravali 1991-04-23
D263824 General-purpose electronic telephone set base Peter S. Kubik 1982-04-13
4291198 General-purpose electronic telephone station set Robert Anderson, Douglas L. Bayer, Peter S. Kubik 1981-09-22