- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 53/02 - 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
Patent holdings for IPC class B01D 53/02
Total number of patents in this class: 3918
10-year publication summary
324
|
323
|
324
|
344
|
338
|
284
|
231
|
248
|
241
|
63
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
ExxonMobil Research And Engineering Company | 2830 |
79 |
Uop LLC | 4083 |
66 |
Air Products and Chemicals, Inc. | 1448 |
48 |
Praxair Technology, Inc. | 1367 |
42 |
The Regents of the University of California | 18943 |
40 |
King Abdullah University of Science and Technology | 1703 |
38 |
Saudi Arabian Oil Company | 11322 |
38 |
Calgon Carbon Corporation | 224 |
36 |
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3515 |
34 |
3m Innovative Properties Company | 18406 |
32 |
Global Thermostat Operations LLC | 49 |
31 |
Enverid Systems, Inc. | 80 |
30 |
Johnson Matthey Public Limited Company | 1852 |
28 |
Donaldson Company, Inc. | 1513 |
26 |
Georgia Tech Research Corporation | 2453 |
24 |
BASF SE | 19740 |
23 |
Corning Incorporated | 9932 |
23 |
Chevron U.S.A. Inc. | 3774 |
23 |
ExxonMobil Upstream Research Company | 2525 |
23 |
Samsung Electronics Co., Ltd. | 131630 |
22 |
Other owners | 3212 |