Combustion staging system
US-2018372323-A1 · Dec 27, 2018 · US
Mechanical Engineering · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F02C9/34 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 217 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 17 |
| 2016 | 20 |
| 2017 | 16 |
| 2018 | 26 |
| 2019 | 22 |
| 2020 | 15 |
| 2021 | 30 |
| 2022 | 18 |
| 2023 | 15 |
| 2024 | 23 |
| 2025 | 13 |
| 2026 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2018372323-A1 · Dec 27, 2018 · US
US-2018372322-A1 · Dec 27, 2018 · US
US-2018258863-A1 · Sep 13, 2018 · US
US-2018163966-A1 · Jun 14, 2018 · US
US-9927818-B2 · Mar 27, 2018 · US
US-9920696-B2 · Mar 20, 2018 · US
US-9874351-B2 · Jan 23, 2018 · US
US-9810159-B2 · Nov 7, 2017 · US
US-2017298840-A1 · Oct 19, 2017 · US
US-2017292458-A1 · Oct 12, 2017 · US
US-2017268781-A1 · Sep 21, 2017 · US
US-2017248083-A1 · Aug 31, 2017 · US
US-2017234541-A1 · Aug 17, 2017 · US
US-9726085-B2 · Aug 8, 2017 · US
US-2017191665-A1 · Jul 6, 2017 · US
US-9689574-B2 · Jun 27, 2017 · US
US-2017122222-A1 · May 4, 2017 · US
US-9639071-B2 · May 2, 2017 · US
US-9631559-B2 · Apr 25, 2017 · US
US-2017089266-A1 · Mar 30, 2017 · US
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