- All sections
- C - Chemistry; metallurgy
- C23G - Cleaning or de-greasing of metallic material by chemical methods other than electrolysis
- C23G 1/08 - Iron or steel
Patent holdings for IPC class C23G 1/08
Total number of patents in this class: 381
10-year publication summary
|
23
|
37
|
38
|
46
|
40
|
32
|
34
|
34
|
36
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6067 |
37 |
| Nippon Steel Corporation | 5649 |
27 |
| POSCO | 2222 |
24 |
| NIPPON STEEL Stainless Steel Corporation | 254 |
20 |
| Henkel AG & Co. KGaA | 10129 |
11 |
| Primetals Technologies Japan, Ltd. | 143 |
11 |
| Dorf Ketal Chemicals FZE | 238 |
10 |
| POSCO Co., Ltd. | 1059 |
9 |
| ArcelorMittal | 1887 |
8 |
| Chemetall GmbH | 382 |
6 |
| Fluid Energy Group Ltd. | 70 |
6 |
| General Electric Company | 18133 |
5 |
| Danieli & C. Officine Meccaniche S.p.A. | 680 |
5 |
| Ethicon, Inc. | 1310 |
4 |
| Ecolab USA Inc. | 5190 |
4 |
| Hyundai Steel Company | 310 |
4 |
| Nippon Steel & Sumikin Stainless Steel Corporation | 171 |
4 |
| Nippon Steel & Sumitomo Metal Corporation | 1990 |
4 |
| Toyo Kohan Co., Ltd. | 413 |
4 |
| Baoshan Iron & Steel Co., Ltd. | 832 |
3 |
| Other owners | 175 |