B01D 2252/20452
Containing a morpholine-ring
Official title: containing a morpholine-ring
B01D2252/20452 (Containing a morpholine-ring) appears on 32 US grants and 47 published applications in this corpus.
Search patents in B01D- Granted patents
- 32
- Published applications
- 47
- Assignees
- 26
- Inventors
- 111
- Latest grant
- 10 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2012 | 0 | 1 |
| 2013 | 0 | 3 |
| 2014 | 2 | 4 |
| 2015 | 2 | 2 |
| 2016 | 3 | 4 |
| 2017 | 1 | 3 |
| 2018 | 2 | 3 |
| 2019 | 5 | 2 |
| 2020 | 3 | 4 |
| 2021 | 2 | 5 |
| 2022 | 2 | 4 |
| 2023 | 4 | 3 |
| 2024 | 2 | 2 |
| 2025 | 4 | 5 |
| 2026 | 0 | 2 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Acid gas scrubbing methods featuring amine phase separation for hydrogen sulfide capture10 Jun 2025US 12,325,004 B2ExxonMobil Technology and Engineering Company
- Diamine solvent system for CO2 capture6 May 2025US 12,290,779 B2Battelle Memorial Institute
- Simulation of unit operations of a chemical plant for acid gas removal22 Apr 2025US 12,282,722 B2BASF SE
- Systems and methods for processing gases4 Feb 2025US 12,215,026 B2Transform Materials LLC
- Organic iodine trapping apparatus24 Dec 2024US 12,176,118 B2Hitachi-GE Nuclear Energy, Ltd.
- Electrochemical systems for capture of acid gases12 Feb 2026US 2026/0042063 A1
- Carbon dioxide absorbent containing ionic material containing spiro ammonium cation and hydroxide anion, and carbon dioxide separation method using the same1 Jan 2026US 2026/0001056 A1SK Innovation Co., Ltd.
- Acid Gas Scrubbing Methods Featuring Amine Phase Separation for Hydrogen Sulfide Capture6 Nov 2025US 2025/0339809 A1ExxonMobil Technology and Engineering Company
- Carbon Dioxide Absorbing Composition, Method of Absorbing Carbon Dioxide and Method of Separating Carbon Dioxide Using the Same13 Mar 2025US 2025/0083096 A1SK Innovation Co., Ltd.
- Carbon Dioxide Absorbing Composition, Method of Absorbing Carbon Dioxide and Method of Separating Carbon Dioxide Using the Same13 Mar 2025US 2025/0083125 A1SK Innovation Co., Ltd.
Most cited
By later US patents
- Method for absorbing CO2 from a gas mixture7US 9,630,140 B2Evonik Degussa GmbH · 2017
- System for the capture and release of acid gases4US 10,279,307 B2C-Capture Ltd · 2019
- Simulation of unit operations of a chemical plant for acid gas removal4US 11,048,842 B2BASF SE · 2021
- Acid gas absorbent composition4US 8,765,951 B2Nalco Company · 2014
- Diamine having tert-alkylamino group and primary amino group for use in gas scrubbing3US 10,214,482 B2BASF SE · 2019