- 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: 5790
10-year publication summary
|
365
|
415
|
418
|
451
|
390
|
423
|
441
|
537
|
551
|
489
|
| 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 | 4003 |
118 |
| ExxonMobil Research And Engineering Company | 2562 |
88 |
| ExxonMobil Upstream Research Company | 2390 |
85 |
| Praxair Technology, Inc. | 1283 |
74 |
| Uop LLC | 4246 |
72 |
| Climeworks AG | 101 |
64 |
| Saudi Arabian Oil Company | 13409 |
61 |
| NGK Insulators, Ltd. | 5103 |
59 |
| Atlas Copco Airpower, naamloze vennootschap | 1035 |
53 |
| BASF Corporation | 1719 |
49 |
| MANN+HUMMEL GmbH | 1768 |
48 |
| Air Products and Chemicals, Inc. | 1447 |
44 |
| Enverid Systems, Inc. | 80 |
43 |
| Huaneng Clean Energy Research Institute | 465 |
42 |
| W. L. Gore & Associates, Inc. | 2726 |
40 |
| Johnson Matthey Public Limited Company | 1873 |
40 |
| Shell Internationale Research Maatschappij B.V. | 3557 |
38 |
| Honda Motor Co., Ltd. | 25771 |
37 |
| Arizona Board of Regents on behalf of Arizona State University | 2673 |
37 |
| Calgon Carbon Corporation | 239 |
35 |
| Other owners | 4663 |