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Mark A. Martinka

AL American Telephone And Telegraph Company, At&T Bell Laboratories: 2 patents #123 of 1,086Top 15%
AT American Telephone And Telegraph: 1 patents #132 of 699Top 20%
📍 Pickerington, OH: #74 of 192 inventorsTop 40%
🗺 Ohio: #30,338 of 73,341 inventorsTop 45%
Overall (All Time): #2,322,098 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4905274 Key telephone management system Bret A. Cooper, James R. Hahn, III, William H. Havanas 1990-02-27
4866763 Interexchange carrier automatic route selection system Bret A. Cooper, William H. Havanas, Thomas R. Lanning 1989-09-12