- All sections
- C - Chemistrymetallurgy
- C22C - Alloys
- C22C 27/04 - Alloys based on tungsten or molybdenum
Patent holdings for IPC class C22C 27/04
Total number of patents in this class: 603
10-year publication summary
|
53
|
40
|
56
|
32
|
34
|
33
|
45
|
51
|
37
|
45
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| A.L.M.T. Corp. | 234 |
40 |
| Toshiba Materials Co., Ltd. | 654 |
34 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6261 |
24 |
| PLANSEE SE | 232 |
22 |
| Panasonic Intellectual Property Management Co., Ltd. | 32052 |
20 |
| Mirus LLC | 197 |
17 |
| JX Nippon Mining & Metals Corporation | 1485 |
16 |
| Meidensha Corporation | 903 |
15 |
| Maxterial, Inc. | 37 |
14 |
| Massachusetts Institute of Technology | 10115 |
13 |
| H.C. Starck Solutions Euclid, LLC | 24 |
13 |
| Toshiba Corporation | 12500 |
9 |
| Hitachi Metals, Ltd. | 1971 |
9 |
| Mitsubishi Materials Corporation | 2469 |
9 |
| Abbott Cardiovascular Systems, Inc. | 1114 |
8 |
| Kabushiki Kaisha Riken | 292 |
8 |
| Xiamen Honglu Tungsten Molybdenum Industry Co., Ltd | 13 |
8 |
| The Regents of the University of California | 20108 |
7 |
| Henan University of Science and Technology | 34 |
7 |
| SANYO Special Steel Co., Ltd. | 227 |
6 |
| Other owners | 304 |