- 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: 6387
10-year publication summary
|
450
|
439
|
471
|
413
|
454
|
469
|
584
|
621
|
643
|
458
|
| 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 | 4117 |
130 |
| ExxonMobil Research And Engineering Company | 2422 |
88 |
| Uop LLC | 4393 |
86 |
| ExxonMobil Upstream Research Company | 2305 |
85 |
| NGK Insulators, Ltd. | 5236 |
82 |
| Saudi Arabian Oil Company | 14235 |
74 |
| Climeworks AG | 108 |
73 |
| Praxair Technology, Inc. | 1222 |
73 |
| Atlas Copco Airpower, naamloze vennootschap | 1081 |
58 |
| Air Products and Chemicals, Inc. | 1471 |
57 |
| MANN+HUMMEL GmbH | 1808 |
57 |
| BASF Corporation | 1681 |
52 |
| Robert Bosch GmbH | 44160 |
49 |
| W. L. Gore & Associates, Inc. | 2720 |
46 |
| Enverid Systems, Inc. | 80 |
43 |
| Huaneng Clean Energy Research Institute | 509 |
43 |
| Arizona Board of Regents on behalf of Arizona State University | 2934 |
42 |
| Linde GmbH | 1360 |
41 |
| Shell Internationale Research Maatschappij B.V. | 3403 |
40 |
| Mitsubishi Electric Corporation | 48018 |
40 |
| Other owners | 5128 |