Fuel combustion system with a perforated reaction holder
US-11156356-B2 · Oct 26, 2021 · US
Selection of a non-toxic gas · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F23D14/80 |
| Official title | Selection of a non-toxic gas |
| Display label | Selection of a non-toxic gas |
| Total patents | 24 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 3 |
| 2021 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-11156356-B2 · Oct 26, 2021 · US
US-2019277492-A1 · Sep 12, 2019 · US
US-10337729-B2 · Jul 2, 2019 · US
US-2019003705-A1 · Jan 3, 2019 · US
US-10077899-B2 · Sep 18, 2018 · US
US-2018080648-A1 · Mar 22, 2018 · US
US-2018003378-A1 · Jan 4, 2018 · US
US-9857076-B2 · Jan 2, 2018 · US
US-9803855-B2 · Oct 31, 2017 · US
US-9797595-B2 · Oct 24, 2017 · US
US-9562682-B2 · Feb 7, 2017 · US
US-9447965-B2 · Sep 20, 2016 · US
US-9388981-B2 · Jul 12, 2016 · US
US-9377190-B2 · Jun 28, 2016 · US
US-2016025333-A1 · Jan 28, 2016 · US
US-2015369477-A1 · Dec 24, 2015 · US
US-9217373-B2 · Dec 22, 2015 · US
US-2015362178-A1 · Dec 17, 2015 · US
US-2015316261-A1 · Nov 5, 2015 · US
US-2015285491-A1 · Oct 8, 2015 · US