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John A. Krallmann — 1 Patent

ATAT&T: 1 patents #10,636 of 18,772Top 60%
Warrenville, IL: #100 of 171 inventorsTop 60%
Illinois: #49,230 of 84,256 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
John A. Krallmann has been granted 1 US patent while listed as an inventor at AT&T. All of these patents were granted in 1995. John A. Krallmann ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list John A. Krallmann in Warrenville, IL, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5384822 Computer controlled test facility for a telecommunication switch Ben G. Brown, Christopher D. Liesen, Mark J. Purdome 1995-01-24

Frequent Collaborators

Ben G. Brown1 shared
Mark J. Purdome1 shared
Christopher D. Liesen1 shared

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