Utilizing SIP messages to determine the status of a remote terminal in VOIP communication systems
US-10863021-B2 · Dec 8, 2020 · US
Electricity · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04L61/308 |
| Official title | — |
| Display label | Electricity (mapped technology topic) |
| Total patents | 80 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 16 |
| 2017 | 7 |
| 2018 | 10 |
| 2019 | 13 |
| 2020 | 16 |
| 2021 | 11 |
| 2022 | 3 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-10863021-B2 · Dec 8, 2020 · US
US-2020275265-A1 · Aug 27, 2020 · US
US-2020236216-A1 · Jul 23, 2020 · US
US-10713273-B2 · Jul 14, 2020 · US
US-10637938-B2 · Apr 28, 2020 · US
US-10581930-B2 · Mar 3, 2020 · US
US-10560839-B1 · Feb 11, 2020 · US
US-2020045123-A1 · Feb 6, 2020 · US
US-10554825-B2 · Feb 4, 2020 · US
US-2020028963-A1 · Jan 23, 2020 · US
US-10469286-B2 · Nov 5, 2019 · US
US-10454886-B2 · Oct 22, 2019 · US
US-10447797-B2 · Oct 15, 2019 · US
US-10419993-B2 · Sep 17, 2019 · US
US-10367935-B2 · Jul 30, 2019 · US
US-2019227792-A1 · Jul 25, 2019 · US
US-2019208063-A1 · Jul 4, 2019 · US
US-10341291-B2 · Jul 2, 2019 · US
US-10275235-B2 · Apr 30, 2019 · US
US-2019087178-A1 · Mar 21, 2019 · US
Answers are generated from the same data shown on this page.