Telephone switching apparatus and method, and program
US-10165098-B2 · Dec 25, 2018 · US
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Nippon Telegraph And Telephone West Corp patents in 2018
Nippon Telegraph And Telephone West Corp was listed as an assignee on 4 patent publications in 2018.
| Metric | Value |
|---|---|
| Company | Nippon Telegraph And Telephone West Corp |
| Year | 2018 |
| Patents | 4 |
Patents
Representative publications for Nippon Telegraph And Telephone West Corp in 2018.
Key telephone system, control method, terminal, and program
US-10135998-B2 · Nov 20, 2018 · US
Nurse call system, interface unit, and nurse call connection method
US-10092472-B2 · Oct 9, 2018 · US
Telephone switching apparatus and method, and program
US-2018131795-A1 · May 10, 2018 · US
Top CPC classifications
Most common classification codes for Nippon Telegraph And Telephone West Corp in 2018.
| CPC | Patents |
|---|---|
| H04M9/00 | 3 |
| H04M11/10 | 2 |
| H04M1/2477 | 2 |
| H04M2203/1016 | 2 |
| H04M2203/30 | 2 |
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