Aastra Aerospace Inc.
2Patents
0Active
2Granted
23Portfolio score
Filing activity: May 2, 1996 → May 2, 1996
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5812649A | Method and apparatus for supporting spontaneous call waiting identification | Electricity | 66 | Expired |
| US5764758A | Interrupted tone converter | Electricity | 4 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.