- 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: 6605
10-year publication summary
|
450
|
439
|
471
|
413
|
454
|
469
|
586
|
621
|
659
|
668
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
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 | 4154 |
132 |
| ExxonMobil Research And Engineering Company | 2380 |
88 |
| Uop LLC | 4411 |
88 |
| ExxonMobil Upstream Research Company | 2274 |
85 |
| NGK Insulators, Ltd. | 5161 |
83 |
| Climeworks AG | 113 |
77 |
| Saudi Arabian Oil Company | 14469 |
75 |
| Praxair Technology, Inc. | 1201 |
72 |
| Air Products and Chemicals, Inc. | 1479 |
61 |
| Atlas Copco Airpower, naamloze vennootschap | 1084 |
60 |
| MANN+HUMMEL GmbH | 1818 |
57 |
| BASF Corporation | 1679 |
53 |
| Honda Motor Co., Ltd. | 26719 |
52 |
| Robert Bosch GmbH | 44459 |
51 |
| W. L. Gore & Associates, Inc. | 2742 |
46 |
| Mitsubishi Electric Corporation | 48587 |
45 |
| Linde GmbH | 1399 |
45 |
| Arizona Board of Regents on behalf of Arizona State University | 3026 |
43 |
| Enverid Systems, Inc. | 80 |
43 |
| Huaneng Clean Energy Research Institute | 511 |
43 |
| Other owners | 5306 |