Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10148820 | Call transfer using session initiation protocol (SIP) | Vyacheslav Zhakov, Vyacheslav Sayko | 2018-12-04 |
| RE46751 | Call transfer using session initiation protocol (SIP) | Vyacheslav Zhakov, Vyacheslav Sayko | 2018-03-06 |
| 9794411 | Call transfer using session initiation protocol (SIP) | Vyacheslav Zhakov, Vyacheslav Sayko | 2017-10-17 |
| 9042372 | Call transfer using session initiation protocol (SIP) | Vyacheslav Zhakov, Vyacheslav Sayko | 2015-05-26 |
| 6958994 | Call transfer using session initiation protocol (SIP) | Vyacheslav Zhakov, Vyacheslav Sayko | 2005-10-25 |