- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 53/02 - 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
Patent holdings for IPC class B01D 53/02
Total number of patents in this class: 4244
10-year publication summary
|
323
|
324
|
344
|
338
|
284
|
243
|
281
|
277
|
276
|
177
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ExxonMobil Research And Engineering Company | 2573 |
73 |
| Uop LLC | 4244 |
69 |
| Air Products and Chemicals, Inc. | 1423 |
49 |
| The Regents of the University of California | 19918 |
44 |
| Praxair Technology, Inc. | 1298 |
43 |
| Saudi Arabian Oil Company | 13155 |
43 |
| Calgon Carbon Corporation | 238 |
41 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3975 |
39 |
| King Abdullah University of Science and Technology | 1778 |
38 |
| ExxonMobil Technology and Engineering Company | 1080 |
38 |
| Global Thermostat Operations LLC | 54 |
33 |
| 3m Innovative Properties Company | 17833 |
32 |
| Donaldson Company, Inc. | 1600 |
31 |
| Enverid Systems, Inc. | 80 |
30 |
| Johnson Matthey Public Limited Company | 1850 |
29 |
| Georgia Tech Research Corporation | 2733 |
28 |
| Corning Incorporated | 10259 |
27 |
| W. L. Gore & Associates, Inc. | 2684 |
26 |
| BASF SE | 20933 |
25 |
| Entegris, Inc. | 1868 |
24 |
| Other owners | 3482 |