Once-through heat exchanger and heat recovery steam generator including the same
US-2024159172-A1 · May 16, 2024 · US
This page is not indexed by search engines while we improve data quality.
Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically · 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 | F22B21/00 |
| Official title | Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically |
| Display label | Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically |
| Total patents | 12 |
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 | 3 |
| 2017 | 1 |
| 2019 | 6 |
| 2021 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Vertical heat recovery steam generator
US-11118781-B2 · Sep 14, 2021 · US
Arrangement of heat recovery surfaces of a recovery boiler
US-10502410-B2 · Dec 10, 2019 · US
Vertical heat recovery steam generator
US-2019170344-A1 · Jun 6, 2019 · US
Tube arrangement in a once-through horizontal evaporator
US-10274192-B2 · Apr 30, 2019 · US
Method for generating a stress reduction in erected tube walls of a steam generator
US-10273551-B2 · Apr 30, 2019 · US
Steam generator for a steam cooking appliance, steam cooking appliance having a steam generator of said type, and method for generating steam
US-2019086075-A1 · Mar 21, 2019 · US
Arrangement of heat recovery surfaces of a recovery boiler
US-2019078773-A1 · Mar 14, 2019 · US
Flow control devices and methods for a once-through horizontal evaporator
US-9746174-B2 · Aug 29, 2017 · US
Start-up system for a once-through horizontal evaporator
US-9151488-B2 · Oct 6, 2015 · US
Biomass-mixed-firing pulverized coal fired boiler and operation method of the boiler
US-9068746-B2 · Jun 30, 2015 · US
Buckstay connecting system
US-8939112-B2 · Jan 27, 2015 · US