- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 13/02 - Preparation of oxygen
Patent holdings for IPC class C01B 13/02
Total number of patents in this class: 1001
10-year publication summary
|
70
|
82
|
70
|
80
|
56
|
50
|
57
|
76
|
69
|
35
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Praxair Technology, Inc. | 1285 |
66 |
| Koninklijke Philips N.V. | 24810 |
22 |
| Diehl Aviation Gilching GmbH | 40 |
17 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3990 |
16 |
| Canon Kabushiki Kaisha | 7066 |
11 |
| California Institute of Technology | 3981 |
10 |
| Air Products and Chemicals, Inc. | 1443 |
10 |
| Teijin Pharma Limited | 260 |
10 |
| AVOX Systems Inc. | 66 |
9 |
| Inogen, Inc. | 106 |
9 |
| Koninklijke Philips Electronics N.V. | 9462 |
8 |
| Topsoe A/S | 906 |
8 |
| Japan Technological Research Association of Artificial Photosynthetic Chemical Process | 58 |
7 |
| Korea Institute of Energy Research | 857 |
7 |
| Qwtip LLC | 65 |
7 |
| Haldor Topsøe A/S | 658 |
7 |
| Philips Intellectual Property & Standards GmbH | 1900 |
7 |
| Shenzhen Good Family Sporting Goods Chain Management Co., Ltd | 12 |
7 |
| Canon Inc. | 40216 |
6 |
| Panasonic Intellectual Property Management Co., Ltd. | 31696 |
6 |
| Other owners | 751 |