- 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: 6119
10-year publication summary
|
415
|
418
|
451
|
390
|
423
|
441
|
542
|
555
|
603
|
192
|
| 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 | 4042 |
122 |
| ExxonMobil Research And Engineering Company | 2475 |
88 |
| ExxonMobil Upstream Research Company | 2340 |
85 |
| NGK Insulators, Ltd. | 5180 |
81 |
| Uop LLC | 4301 |
77 |
| Praxair Technology, Inc. | 1225 |
71 |
| Saudi Arabian Oil Company | 13940 |
69 |
| Climeworks AG | 106 |
68 |
| Air Products and Chemicals, Inc. | 1462 |
53 |
| Atlas Copco Airpower, naamloze vennootschap | 1064 |
53 |
| BASF Corporation | 1689 |
52 |
| MANN+HUMMEL GmbH | 1796 |
50 |
| W. L. Gore & Associates, Inc. | 2698 |
46 |
| Enverid Systems, Inc. | 80 |
43 |
| Huaneng Clean Energy Research Institute | 507 |
43 |
| Shell Internationale Research Maatschappij B.V. | 3474 |
40 |
| Arizona Board of Regents on behalf of Arizona State University | 2821 |
39 |
| Mitsubishi Electric Corporation | 47522 |
38 |
| Honda Motor Co., Ltd. | 25846 |
37 |
| ExxonMobil Technology and Engineering Company | 1259 |
37 |
| Other owners | 4927 |