- 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: 319
10-year publication summary
|
22
|
28
|
23
|
17
|
18
|
14
|
15
|
13
|
16
|
24
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
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 | 4152 |
25 |
| Praxair Technology, Inc. | 1203 |
25 |
| BASF Mobile Emissions Catalysts LLC | 428 |
15 |
| Air Products and Chemicals, Inc. | 1475 |
14 |
| Linde Aktiengesellschaft | 1410 |
12 |
| Taiyo Nippon Sanso Corporation | 351 |
9 |
| Johnson Matthey Public Limited Company | 1769 |
8 |
| Linde GmbH | 1392 |
8 |
| Umicore AG & Co. KG | 842 |
7 |
| Battelle Memorial Institute | 2621 |
6 |
| Duke University | 3192 |
5 |
| Saudi Arabian Oil Company | 14416 |
5 |
| Umicore Shokubai Japan Co., Ltd. | 79 |
5 |
| Curium US LLC | 187 |
5 |
| Japan Petroleum Exploration Co., Ltd. | 140 |
4 |
| Shin-Etsu Handotai Co., Ltd. | 1308 |
4 |
| Air Water Inc. | 168 |
3 |
| Aramco Services Company | 4191 |
3 |
| Casale SA | 638 |
3 |
| Dalian University of Technology | 1614 |
3 |
| Other owners | 150 |