- 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: 143
10-year publication summary
|
24
|
12
|
11
|
10
|
6
|
12
|
12
|
13
|
11
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nissan Motor Co., Ltd. | 12373 |
18 |
| Nippon Steel Corporation | 6038 |
10 |
| Senju Metal Industry Co., Ltd. | 675 |
7 |
| Toshiba Materials Co., Ltd. | 632 |
6 |
| Hitachi, Ltd. | 15264 |
4 |
| Wieland-Werke AG | 325 |
4 |
| Toshiba Corporation | 12089 |
3 |
| SANYO Special Steel Co., Ltd. | 217 |
3 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6258 |
3 |
| NIPPON STEEL Stainless Steel Corporation | 281 |
3 |
| Infineon Technologies AG | 8144 |
2 |
| Idemitsu Kosan Co., Ltd. | 4122 |
2 |
| Alpha Assembly Solutions Inc. | 192 |
2 |
| Central Glass Company, Limited | 1249 |
2 |
| Heraeus Deutschland GmbH & Co. KG | 437 |
2 |
| Indium Corporation | 76 |
2 |
| National Tsing Hua University | 1140 |
2 |
| Oerlikon Metco (US) Inc. | 212 |
2 |
| Oiles Corporation | 508 |
2 |
| Sumitomo Metal Mining Co., Ltd. | 1737 |
2 |
| Other owners | 62 |