- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 17/04 - Preparation of sulfurPurification from gaseous sulfur compounds including gaseous sulfides
Patent holdings for IPC class C01B 17/04
Total number of patents in this class: 524
10-year publication summary
|
35
|
30
|
36
|
38
|
24
|
22
|
24
|
24
|
26
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 13857 |
86 |
| Aramco Services Company | 4157 |
24 |
| Shell Internationale Research Maatschappij B.V. | 3504 |
22 |
| Fluor Technologies Corporation | 370 |
16 |
| Phillips 66 Company | 1055 |
15 |
| Haldor Topsøe A/S | 640 |
12 |
| Stamicarbon B.V. Acting under The Name of MT Innovation Center | 54 |
11 |
| Linde Aktiengesellschaft | 1459 |
10 |
| China Petroleum & Chemical Corporation | 1997 |
8 |
| Air Products and Chemicals, Inc. | 1450 |
7 |
| ExxonMobil Upstream Research Company | 2358 |
7 |
| Shandong University | 1097 |
7 |
| WorleyParsons Group, Inc. | 11 |
7 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4037 |
6 |
| Politecnico di Milano | 885 |
6 |
| Topsoe A/S | 985 |
6 |
| Uop LLC | 4273 |
5 |
| Chevron U.S.A. Inc. | 4048 |
5 |
| Gas Technology Institute | 340 |
5 |
| Knauf Gips KG | 624 |
5 |
| Other owners | 254 |