- All sections
- C - Chemistrymetallurgy
- C10N - Indexing scheme associated with subclass
- C10N 40/20 - Metal working
Patent holdings for IPC class C10N 40/20
Total number of patents in this class: 338
10-year publication summary
|
8
|
13
|
24
|
20
|
22
|
29
|
22
|
29
|
23
|
15
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Kosan Co., Ltd. | 4238 |
70 |
| The Lubrizol Corporation | 1290 |
13 |
| Totalenergies Onetech | 1395 |
11 |
| FUJIFILM Corporation | 29714 |
10 |
| Dow Global Technologies LLC | 10479 |
10 |
| Adeka Corporation | 1367 |
9 |
| JX Nippon Oil & Energy Corporation | 999 |
9 |
| BASF SE | 21053 |
8 |
| Castrol Limited | 519 |
5 |
| Kyodo Yushi Co., Ltd. | 244 |
5 |
| Mitsubishi Gas Chemical Company, Inc. | 3485 |
5 |
| Nippon Oil Corporation | 277 |
5 |
| NOK Corporation | 2238 |
5 |
| ENEOS Corporation | 628 |
5 |
| Henkel AG & Co. KGaA | 10642 |
4 |
| Chemetall US, Inc. | 25 |
4 |
| Chemische Fabrik Budenheim KG | 216 |
4 |
| JFE Steel Corporation | 6998 |
4 |
| Kao Corporation | 4986 |
3 |
| Showa Denko K.K. | 2192 |
3 |
| Other owners | 146 |