- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 53/047 - Pressure swing adsorption
Patent holdings for IPC class B01D 53/047
Total number of patents in this class: 2234
10-year publication summary
|
157
|
174
|
175
|
150
|
153
|
157
|
183
|
177
|
187
|
150
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
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 | 3992 |
151 |
| Air Products and Chemicals, Inc. | 1441 |
105 |
| Praxair Technology, Inc. | 1284 |
100 |
| ExxonMobil Upstream Research Company | 2395 |
90 |
| Uop LLC | 4242 |
84 |
| ExxonMobil Research And Engineering Company | 2564 |
59 |
| Saudi Arabian Oil Company | 13316 |
51 |
| Linde GmbH | 1256 |
31 |
| Koninklijke Philips N.V. | 24827 |
30 |
| Linde Aktiengesellschaft | 1498 |
29 |
| Ventec Life Systems, Inc. | 105 |
29 |
| Climeworks AG | 101 |
27 |
| Chevron U.S.A. Inc. | 3981 |
21 |
| Inogen, Inc. | 106 |
21 |
| Pacific Consolidated Industries, LLC | 21 |
19 |
| ExxonMobil Technology and Engineering Company | 1098 |
18 |
| Asahi Kasei Kabushiki Kaisha | 2682 |
17 |
| Daikin Industries, Ltd. | 10058 |
16 |
| Air Liquide Advanced Technologies U.S. LLC | 90 |
14 |
| ThermoChem Recovery International, Inc. | 99 |
14 |
| Other owners | 1308 |