- All sections
- C - Chemistrymetallurgy
- C22C - Alloys
- C22C 30/04 - Alloys containing less than 50% by weight of each constituent containing tin or lead
Patent holdings for IPC class C22C 30/04
Total number of patents in this class: 154
10-year publication summary
|
24
|
12
|
11
|
10
|
6
|
12
|
12
|
12
|
11
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nissan Motor Co., Ltd. | 12523 |
18 |
| Nippon Steel Corporation | 6334 |
14 |
| Senju Metal Industry Co., Ltd. | 685 |
7 |
| Toshiba Materials Co., Ltd. | 664 |
6 |
| Hitachi, Ltd. | 15556 |
4 |
| Wieland-Werke AG | 346 |
4 |
| NIPPON STEEL Stainless Steel Corporation | 283 |
4 |
| Toshiba Corporation | 12472 |
3 |
| Oerlikon Metco (US) Inc. | 206 |
3 |
| SANYO Special Steel Co., Ltd. | 226 |
3 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6266 |
3 |
| Infineon Technologies AG | 8250 |
2 |
| Idemitsu Kosan Co., Ltd. | 4223 |
2 |
| Alpha Assembly Solutions Inc. | 203 |
2 |
| Central Glass Company, Limited | 1271 |
2 |
| Heraeus Deutschland GmbH & Co. KG | 418 |
2 |
| Indium Corporation | 76 |
2 |
| National Tsing Hua University | 1192 |
2 |
| Oiles Corporation | 516 |
2 |
| Sumitomo Metal Mining Co., Ltd. | 1788 |
2 |
| Other owners | 67 |