- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 53/04 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical 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: 4925
10-year publication summary
|
322
|
391
|
450
|
439
|
471
|
413
|
453
|
461
|
542
|
173
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
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 | 3515 |
112 |
| ExxonMobil Research And Engineering Company | 2830 |
92 |
| ExxonMobil Upstream Research Company | 2525 |
87 |
| Praxair Technology, Inc. | 1367 |
76 |
| Uop LLC | 4083 |
61 |
| BASF Corporation | 2039 |
54 |
| Climeworks AG | 83 |
54 |
| Saudi Arabian Oil Company | 11322 |
46 |
| Enverid Systems, Inc. | 80 |
42 |
| MANN+HUMMEL GmbH | 1682 |
39 |
| Air Products and Chemicals, Inc. | 1448 |
38 |
| Atlas Copco Airpower, naamloze vennootschap | 915 |
38 |
| Johnson Matthey Public Limited Company | 1852 |
35 |
| Calgon Carbon Corporation | 224 |
33 |
| Donaldson Company, Inc. | 1513 |
33 |
| Ford Global Technologies, LLC | 19702 |
32 |
| Aisan Kogyo Kabushiki Kaisha | 722 |
32 |
| Entegris, Inc. | 1736 |
32 |
| Koninklijke Philips N.V. | 22975 |
30 |
| Dow Global Technologies LLC | 10147 |
30 |
| Other owners | 3929 |