- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 17/16 - Hydrogen sulfides
Patent holdings for IPC class C01B 17/16
Total number of patents in this class: 274
10-year publication summary
|
21
|
22
|
17
|
13
|
12
|
9
|
11
|
17
|
12
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Heavy Industries, Ltd. | 9161 |
18 |
| Saudi Arabian Oil Company | 14296 |
16 |
| BASF SE | 21310 |
11 |
| Chevron Phillips Chemical Company LP | 1861 |
10 |
| ExxonMobil Research And Engineering Company | 2402 |
7 |
| Fluor Technologies Corporation | 360 |
7 |
| Sumitomo Metal Mining Co., Ltd. | 1982 |
7 |
| Agc, Inc. | 5563 |
7 |
| The Kansai Electric Power Co., Inc. | 122 |
6 |
| Shell Internationale Research Maatschappij B.V. | 3394 |
5 |
| Chevron U.S.A. Inc. | 4155 |
5 |
| Air Products and Chemicals, Inc. | 1470 |
5 |
| China Petroleum & Chemical Corporation | 2160 |
5 |
| Ecolab USA Inc. | 5810 |
5 |
| Evonik Operations GmbH | 4380 |
5 |
| Bechtel Energy Technologies & Solutions, Inc. | 78 |
5 |
| Evonik Industries AG | 223 |
4 |
| Shell Oil Company | 2067 |
4 |
| Aramco Services Company | 4193 |
4 |
| Huntsman Petrochemical LLC | 310 |
4 |
| Other owners | 134 |