- 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: 1013
10-year publication summary
|
82
|
70
|
80
|
56
|
50
|
57
|
77
|
70
|
48
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Praxair Technology, Inc. | 1259 |
63 |
| Koninklijke Philips N.V. | 25385 |
22 |
| Diehl Aviation Gilching GmbH | 39 |
17 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4040 |
15 |
| Canon Kabushiki Kaisha | 7203 |
11 |
| California Institute of Technology | 4015 |
10 |
| Air Products and Chemicals, Inc. | 1451 |
10 |
| Inogen, Inc. | 108 |
10 |
| Teijin Pharma Limited | 254 |
10 |
| AVOX Systems Inc. | 65 |
9 |
| Koninklijke Philips Electronics N.V. | 8343 |
8 |
| Topsoe A/S | 985 |
8 |
| Canon Inc. | 41739 |
7 |
| Japan Technological Research Association of Artificial Photosynthetic Chemical Process | 59 |
7 |
| Korea Institute of Energy Research | 872 |
7 |
| Korea Research Institute of Chemical Technology | 1435 |
7 |
| Qwtip LLC | 68 |
7 |
| SABIC Global Technologies B.V. | 4460 |
7 |
| Haldor Topsøe A/S | 640 |
7 |
| Philips Intellectual Property & Standards GmbH | 1766 |
7 |
| Other owners | 764 |