- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 23/00 - Noble gasesCompounds thereof
Patent holdings for IPC class C01B 23/00
Total number of patents in this class: 305
10-year publication summary
|
20
|
22
|
28
|
23
|
16
|
17
|
14
|
15
|
13
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Praxair Technology, Inc. | 1293 |
26 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3987 |
23 |
| Air Products and Chemicals, Inc. | 1424 |
16 |
| BASF Mobile Emissions Catalysts LLC | 404 |
15 |
| Linde Aktiengesellschaft | 1498 |
13 |
| Taiyo Nippon Sanso Corporation | 366 |
9 |
| Johnson Matthey Public Limited Company | 1862 |
8 |
| Umicore AG & Co. KG | 854 |
7 |
| Battelle Memorial Institute | 2491 |
6 |
| Umicore Shokubai Japan Co., Ltd. | 80 |
6 |
| Linde GmbH | 1264 |
6 |
| Duke University | 3067 |
5 |
| Air Liquide Advanced Technologies U.S. LLC | 89 |
5 |
| Saudi Arabian Oil Company | 13206 |
5 |
| Curium US LLC | 155 |
5 |
| Japan Petroleum Exploration Co., Ltd. | 164 |
4 |
| Shin-Etsu Handotai Co., Ltd. | 1284 |
4 |
| Air Water Inc. | 144 |
3 |
| Aramco Services Company | 3981 |
3 |
| Casale SA | 611 |
3 |
| Other owners | 133 |