Amount-of-seawater control device for scrubber, amount-of-seawater control method for scrubber, and amount-of-alkali control device
US-10099175-B2 · Oct 16, 2018 · US
by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound · 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 | B01D53/501 |
| Official title | {by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound} |
| Display label | by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound |
| Total patents | 140 |
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 | 20 |
| 2016 | 14 |
| 2017 | 18 |
| 2018 | 17 |
| 2019 | 16 |
| 2020 | 13 |
| 2021 | 16 |
| 2022 | 7 |
| 2023 | 6 |
| 2024 | 5 |
| 2025 | 6 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Controlled process for precipitating calcium carbonate and vaterite precipitated calcium carbonate compositions formed by said process
US-2018265370-A1 · Sep 20, 2018 · US
A controlled process for precipitating polymorphs of calcium carbonate
US-2018265371-A1 · Sep 20, 2018 · US
Methods and systems for marine sulfur dioxide emission reduction
US-10076724-B2 · Sep 18, 2018 · US
Decomposition of ammonium halides for mercury emissions reduction
US-2018140999-A1 · May 24, 2018 · US
Air pollution control system and air pollution control method
US-9943804-B2 · Apr 17, 2018 · US
Cryogenic CO2 separation using a refrigeration system
US-9945607-B2 · Apr 17, 2018 · US
Process comprising sulfur dioxide and/or sulfurous acid pretreatment and enzymatic hydrolysis
US-2018037862-A1 · Feb 8, 2018 · US
A process for converting natural calcium carbonate into precipitated calcium carbonate
US-2017369329-A1 · Dec 28, 2017 · US
Methods and systems for marine sulfur dioxide emission reduction
US-2017368501-A1 · Dec 28, 2017 · US
Sulfite Preconditioning Systems And Methods To Reduce Mercury Concentrations In Waste Water
US-2017326498-A1 · Nov 16, 2017 · US
Wet flue gas desulfurization system with zero waste water liquid discharge
US-2017312683-A1 · Nov 2, 2017 · US
Air pollution control system and air pollution control method
US-9802151-B2 · Oct 31, 2017 · US
Air pollution control system and air pollution control method
US-2017225121-A1 · Aug 10, 2017 · US
Method for cleaning process off- or engine exhaust gas
US-2017216771-A1 · Aug 3, 2017 · US
Method for preventing inactivation of flue gas desulfurization apparatus
US-9718024-B2 · Aug 1, 2017 · US
Method and system for the removal of particulate matter and heavy metals from engine exhaust gas
US-2017211441-A1 · Jul 27, 2017 · US
System and method for reducing liquid discharge from one or more devices
US-2017182459-A1 · Jun 29, 2017 · US
Methods and apparatus to treat exhaust streams
US-2017165607-A1 · Jun 15, 2017 · US
Air pollution control system and air pollution control method
US-9669356-B2 · Jun 6, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D53/501?
- CPC B01D53/501 is the Cooperative Patent Classification code for “by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound.”
- How many patents are filed under CPC B01D53/501 (by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound)?
- Our database includes 140 publications tagged with this CPC code.
- Is patent activity under CPC B01D53/501 growing?
- Publication counts under this code: 5 in 2024 vs 6 in 2025 (latest complete years).