- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 53/04 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
Patent holdings for IPC class B01D 53/04
Total number of patents in this class: 5424
10-year publication summary
|
391
|
450
|
439
|
471
|
413
|
454
|
466
|
578
|
550
|
179
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3873 |
111 |
| ExxonMobil Research And Engineering Company | 2607 |
88 |
| ExxonMobil Upstream Research Company | 2414 |
85 |
| Praxair Technology, Inc. | 1317 |
76 |
| Uop LLC | 4191 |
72 |
| Climeworks AG | 97 |
62 |
| Saudi Arabian Oil Company | 12683 |
58 |
| BASF Corporation | 1709 |
47 |
| MANN+HUMMEL GmbH | 1743 |
47 |
| Atlas Copco Airpower, naamloze vennootschap | 995 |
46 |
| Enverid Systems, Inc. | 79 |
43 |
| NGK Insulators, Ltd. | 4853 |
42 |
| Air Products and Chemicals, Inc. | 1385 |
41 |
| W. L. Gore & Associates, Inc. | 2642 |
39 |
| Shell Internationale Research Maatschappij B.V. | 3473 |
38 |
| Johnson Matthey Public Limited Company | 1852 |
37 |
| Calgon Carbon Corporation | 236 |
34 |
| Samsung Electronics Co., Ltd. | 142124 |
33 |
| Ford Global Technologies, LLC | 20309 |
33 |
| ExxonMobil Technology and Engineering Company | 1004 |
33 |
| Other owners | 4359 |