Description
Class C01C : AMMONIA; CYANOGEN; COMPOUNDS THEREOF
Subclass 1/12: Ammonia; Compounds thereof Preparation or separation of ammonia Separation of ammonia from gases and vapours
C01C 1/12
Sub-Class
Stats
- 39 US PATENTS IN FORCE
- 14 US APPLICATIONS PENDING
- 22 Total Patent Owners
- 161 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12215037 | Systems and methods for recovering salts, aluminum, alumina and ammonia from salt slag waste generated in aluminum recycling | Nov 16, 23 | Feb 04, 25 | Evergreen Alumina, LLC |
| 11834343 | Systems and methods for recovering salts, aluminum, alumina and ammonia from salt slag waste generated in aluminum recycling | Nov 13, 20 | Dec 05, 23 | Not available |
| 11772037 | Methods for extracting and recycling ammonia from MOCVD process exhaust gas by FTrPSA | May 28, 19 | Oct 03, 23 | Zhejiang Tiancaiyunji Technology Co., Ltd. |
| 11180447 | Method for producing methionine | Dec 12, 18 | Nov 23, 21 | SUMITOMO CHEMICAL COMPANY, LIMITED |
| 10981145 | Compositions and methods for removing ammonia from gas | Apr 18, 19 | Apr 20, 21 | Minnesota Mining & Mfg. Co./Regents of the University of Minnesota |
| 10927012 | Process and system to capture ammonia from a purge gas of a urea plant | Feb 01, 18 | Feb 23, 21 | Casale SA |
| 10759669 | Systems and methods for basic gas recovery, acid gas separation, or combination thereof | Aug 22, 19 | Sep 01, 20 | Not available |
| 10702799 | Systems and methods for enhanced separation of hydrogen sulfide and ammonia in a hydrogen sulfide stripper | Jun 19, 18 | Jul 07, 20 | Bechtel Hydrocarbon Technology Solutions, Inc. |
| 10640428 | Removal of urea and ammonia from exhaust gases | Jan 31, 17 | May 05, 20 | Stamicarbon B.V. |
| 10597301 | Ammonia production method | Mar 03, 16 | Mar 24, 20 | JGC CORPORATION |
| 10427948 | Systems and methods for ammonia recovery, acid gas separation, or combination thereof | Jan 25, 19 | Oct 01, 19 | Not available |
| 10280085 | Process and plant for preparing nitric acid | Oct 12, 17 | May 07, 19 | THYSSENKRUPP INDUSTRIAL SOLUTION AG; THYSSENKRUPP AG; |
| 10058848 | Method of carrying out a chemical reaction with the use of a catalyst | Mar 17, 15 | Aug 28, 18 | INSTYTUT ELEKTROTECHNIKI |
| 10046979 | System and method for recycling rare earth and ammonia nitrogen from rare earth wastewater | Nov 16, 16 | Aug 14, 18 | CHINA UNIVERSITY OF GEOSCIENCES (WUHAN) |
| 10022650 | Systems and methods for enhanced separation of hydrogen sulfide and ammonia in a hydrogen sulfide stripper | Mar 05, 15 | Jul 17, 18 | Bechtel Hydrocarbon Technology Solutions, Inc. |
| 10005021 | System and method for recovering ammonia from a gas stream | Dec 22, 16 | Jun 26, 18 | General Electric Technology GmbH |
| 9868107 | Removal of nitrogen dioxide from gas environments using metal-organic frameworks | Feb 13, 17 | Jan 16, 18 | The United States of America as represented by the Secretary of the Army, THE UNITED STATES OF AMERICA, |
| 9856145 | Material ITQ-55, method for preparation and use | Jun 19, 15 | Jan 02, 18 | EXXONMOBIL RESEARCH AND ENGINEERING COMPANY |
| 9815707 | Method of processing discharge gas discharged from production process | Dec 17, 15 | Nov 14, 17 | JAPAN PIONICS CO., LTD. |
| 9738539 | Separation and storage of fluids using ITQ-55 | Jun 19, 15 | Aug 22, 17 | EXXONMOBIL RESEARCH AND ENGINEERING COMPANY |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0109,029 | Systems and Methods for Ammonia Purification | Nov 14, 23 | Apr 03, 25 | BECHTEL ENERGY TECHNOLOGIES & SOLUTIONS, INC. |
| 2024/0399,303 | RECOVERING AMMONIA FOR EXAMPLE FROM COMPOSTING | Oct 03, 22 | Dec 05, 24 | ComFerm Holding ApS |
| 2024/0401,519 | GAS TURBINE PLANT WITH AMMONIA DECOMPOSITION SYSTEM | May 29, 24 | Dec 05, 24 | Not available |
| 2024/0343,593 | AMMONIA CAPTURE AND RECYCLE IN AN AMMONIA CRACKER | Apr 12, 23 | Oct 17, 24 | Not available |
| 2024/0278,175 | METHOD FOR RECYCLING AMMONIA FROM AMMONIA-CONTAINING GAS OR AMMONIA-CONTAINING LIQUID, AMMONIA RECYCLING DEVICE, AND AMMONIA GAS STORAGE DEVICE | Jun 24, 22 | Aug 22, 24 | Daiseki Co., Ltd.; SyncMOF Inc.; |
| 2024/0270,587 | SYSTEMS & METHODS FOR AMMONIA RECOVERY, ACID GAS SEPARATION, OR COMBINATION THEREOF | Feb 13, 24 | Aug 15, 24 | Not available |
| 2024/0059,575 | Method of Bioammonia Production from Wastewater Through Application of Mass-Transfer Reaction Kinetics | Aug 08, 23 | Feb 22, 24 | Circular Upcycling; Figure 8 Environmental; |
| 2023/0093,108 | SYSTEMS AND METHODS FOR MICROWAVE REMOVAL OF NH3 FROM ADSORBENT MATERIAL | Feb 19, 21 | Mar 23, 23 | Not available |
| 2022/0226,773 | AMMONIA-CONTAINING TAIL GAS ABSORPTION SYSTEM | Mar 23, 20 | Jul 21, 22 | Not available |
| 2021/0095,902 | 3D Gradient porous structure for Phase Separation Utilizing Additive Manufacturing Methods | Sep 23, 20 | Apr 01, 21 | Not available |
| 2021/0053,835 | SYSTEMS & METHODS FOR AMMONIA RECOVERY, ACID GAS SEPARATION, OR COMBINATION THEREOF | Sep 01, 20 | Feb 25, 21 | Innovator Energy, LLC |
| 2020/0087,154 | SYSTEMS & METHODS FOR BASIC GAS RECOVERY, ACID GAS SEPARATION, OR COMBINATION THEREOF | Aug 22, 19 | Mar 19, 20 | Not available |
| 2019/0375,649 | A PROCESS AND SYSTEM TO CAPTURE AMMONIA FROM A PURGE GAS OF A UREA PLANT | Feb 01, 18 | Dec 12, 19 | Casale SA |
| 2019/0233,296 | SYSTEMS AND METHODS FOR AMMONIA RECOVERY, ACID GAS SEPARATION, OR COMBINATION THEREOF | Jan 25, 19 | Aug 01, 19 | Not available |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 24 Months (last 2 years Issuances)
- 24 Months (last 5 years Issuances)