Inspection device
US-2023235880-A1 · Jul 27, 2023 · US
Pilot burners · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F23N2227/22 |
| Official title | Pilot burners |
| Display label | Pilot burners |
| Total patents | 35 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 9 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2023235880-A1 · Jul 27, 2023 · US
US-11519606-B1 · Dec 6, 2022 · US
US-11428408-B2 · Aug 30, 2022 · US
US-2022205633-A1 · Jun 30, 2022 · US
US-2022065445-A1 · Mar 3, 2022 · US
US-11187409-B2 · Nov 30, 2021 · US
US-11156356-B2 · Oct 26, 2021 · US
US-2021131664-A1 · May 6, 2021 · US
US-10837642-B2 · Nov 17, 2020 · US
US-2020116354-A1 · Apr 16, 2020 · US
US-10514166-B2 · Dec 24, 2019 · US
US-2019368723-A1 · Dec 5, 2019 · US
US-10478101-B1 · Nov 19, 2019 · US
US-2019277492-A1 · Sep 12, 2019 · US
US-10337729-B2 · Jul 2, 2019 · US
US-10288287-B2 · May 14, 2019 · US
US-2019137096-A1 · May 9, 2019 · US
US-2019063743-A1 · Feb 28, 2019 · US
US-2019003705-A1 · Jan 3, 2019 · US
US-10077899-B2 · Sep 18, 2018 · US
Answers are generated from the same data shown on this page.