linked by a chain containing nitrogen-to-nitrogen bonds · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C09K19/24 |
| Official title | linked by a chain containing nitrogen-to-nitrogen bonds |
| Display label | linked by a chain containing nitrogen-to-nitrogen bonds |
| Total patents | 137 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 11 |
| 2017 | 10 |
| 2018 | 20 |
| 2019 | 16 |
| 2020 | 20 |
| 2021 | 13 |
| 2022 | 9 |
| 2023 | 12 |
| 2024 | 7 |
| 2025 | 6 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2019352567-A1 · Nov 21, 2019 · US
US-10392343-B2 · Aug 27, 2019 · US
US-2019219754-A1 · Jul 18, 2019 · US
US-2019203122-A1 · Jul 4, 2019 · US
US-2019155110-A1 · May 23, 2019 · US
US-2019048262-A1 · Feb 14, 2019 · US
US-2018355179-A1 · Dec 13, 2018 · US
US-2018346614-A1 · Dec 6, 2018 · US
US-2018313990-A1 · Nov 1, 2018 · US
US-10113115-B2 · Oct 30, 2018 · US
US-2018307070-A1 · Oct 25, 2018 · US
US-2018237695-A1 · Aug 23, 2018 · US
US-2018230385-A1 · Aug 16, 2018 · US
US-10048416-B2 · Aug 14, 2018 · US
US-2018201835-A1 · Jul 19, 2018 · US
US-10023743-B2 · Jul 17, 2018 · US
US-2018171233-A1 · Jun 21, 2018 · US
US-2018171229-A1 · Jun 21, 2018 · US
US-10001674-B2 · Jun 19, 2018 · US
US-2018072952-A1 · Mar 15, 2018 · US
Answers are generated from the same data shown on this page.