DT

David Thomson

AT AT&T: 1 patents #47 of 261Top 20%
AT American Telephone And Telegraph: 1 patents #42 of 244Top 20%
AL American Telephone And Telegraph Company, At&T Bell Laboratories: 1 patents #65 of 425Top 20%
📍 Warrenville, IL: #1 of 15 inventorsTop 7%
🗺 Illinois: #289 of 3,813 inventorsTop 8%
Overall (1989): #29,260 of 140,708Top 25%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4890328 Voice synthesis utilizing multi-level filter excitation Dimitrios P. Prezas 1989-12-26
4803730 Fast significant sample detection for a pitch detector — 1989-02-07