Reforming furnace
US-12179165-B2 · Dec 31, 2024 · US
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bent helically, i.e. coiled
bent helically, i.e. coiled · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F22B21/26 |
| Official title | bent helically, i.e. coiled |
| Display label | bent helically, i.e. coiled |
| Total patents | 17 |
Filing trend
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 | 3 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 1 |
| 2022 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Reforming Furnace
US-2022152576-A1 · May 19, 2022 · US
Steam generator
US-10557629-B2 · Feb 11, 2020 · US
Evaporator, rankine cycle apparatus, and combined heat and power system
US-10494957-B2 · Dec 3, 2019 · US
Boiler Heat Exchanger
US-2019271463-A1 · Sep 5, 2019 · US
Evaporator, rankine cycle apparatus, and combined heat and power system
US-2018100411-A1 · Apr 12, 2018 · US
Evaporator, rankine cycle apparatus, and combined heat and power system
US-9869208-B2 · Jan 16, 2018 · US
Combined heat and power system
US-9863280-B2 · Jan 9, 2018 · US
System and method for preheating a heat recovery steam generator
US-9828884-B2 · Nov 28, 2017 · US
System and method for preheating a heat recovery steam generator
US-2017248037-A1 · Aug 31, 2017 · US
Steam boiler for a steam reformer
US-9279581-B2 · Mar 8, 2016 · US
Combined heat and power system
US-2016040556-A1 · Feb 11, 2016 · US
Steam boiler for a steam reformer
US-2016036079-A1 · Feb 4, 2016 · US
Steam boiler for a steam reformer
US-9188329-B2 · Nov 17, 2015 · US
Steam generator
US-2015226419-A1 · Aug 13, 2015 · US
Steam generator
US-2015226420-A1 · Aug 13, 2015 · US
Steam generator
US-9062918-B2 · Jun 23, 2015 · US