Oxygen-enriched combustion for natural gas combined cycle operation
US-2024017204-A1 · Jan 18, 2024 · US
using two beds
using two beds · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01D2259/402 |
| Official title | using two beds |
| Display label | using two beds |
| Total patents | 565 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 46 |
| 2016 | 53 |
| 2017 | 53 |
| 2018 | 62 |
| 2019 | 62 |
| 2020 | 41 |
| 2021 | 40 |
| 2022 | 63 |
| 2023 | 64 |
| 2024 | 43 |
| 2025 | 31 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Simulated moving bed system for co2 separation, and method of same
US-2016361680-A1 · Dec 15, 2016 · US
Treater Regeneration
US-2016361705-A1 · Dec 15, 2016 · US
Processes for removing contaminants from a dehydrogenation effluent
US-9517447-B1 · Dec 13, 2016 · US
Processes for removing contaminants from a dehydrogenation effluent
US-2016346761-A1 · Dec 1, 2016 · US
Carbon dioxide separation using adsorption with steam regeneration
US-9504955-B2 · Nov 29, 2016 · US
Process for removing carbon dioxide from a gas stream
US-9486731-B2 · Nov 8, 2016 · US
Water electrolysis system
US-9435040-B2 · Sep 6, 2016 · US
Air Dryer System for a Locomotive with Optimized Purge Air Control
US-2016159335-A1 · Jun 9, 2016 · US
Method for producing nitrogen gas, method for separating gas and device for producing nitrogen gas
US-9359203-B2 · Jun 7, 2016 · US
Dehumidifying unit, layered temperature control dehumidifying element and drying device
US-2016059182-A1 · Mar 3, 2016 · US
Heat of compression dryer system
US-9259682-B2 · Feb 16, 2016 · US
Separation and Storage of Fluids Using ITQ-55
US-2016008753-A1 · Jan 14, 2016 · US
Oxygen separator and method of generating oxygen
US-2016001216-A1 · Jan 7, 2016 · US
Oxygen concentrator having structural sieve beds
US-9221006-B2 · Dec 29, 2015 · US
Gas separation device and gas separation method
US-9216374-B2 · Dec 22, 2015 · US
Zero gas refiner for co2 concentration measurement device and co2 concentration measurement system
US-2015360171-A1 · Dec 17, 2015 · US
Vertical baffle in horizontal adsorber vessels
US-9199190-B2 · Dec 1, 2015 · US
Method and arrangement for generating oxygen
US-9199847-B2 · Dec 1, 2015 · US
Carbonyls removal system
US-9200566-B2 · Dec 1, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2259/402?
- CPC B01D2259/402 is the Cooperative Patent Classification code for “using two beds.”
- How many patents are filed under CPC B01D2259/402 (using two beds)?
- Our database includes 565 publications tagged with this CPC code.
- Is patent activity under CPC B01D2259/402 growing?
- Publication counts under this code: 43 in 2024 vs 31 in 2025 (latest complete years).