- All sections
- C - Chemistry; metallurgy
- 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: 537
10-year publication summary
|
37
|
53
|
41
|
58
|
32
|
34
|
32
|
44
|
46
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| A.L.M.T. Corp. | 209 |
34 |
| Toshiba Materials Co., Ltd. | 600 |
30 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
22 |
| PLANSEE SE | 233 |
19 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
18 |
| JX Nippon Mining & Metals Corporation | 1576 |
16 |
| Meidensha Corporation | 823 |
15 |
| Mirus LLC | 144 |
14 |
| H.C. Starck Solutions Euclid, LLC | 28 |
14 |
| Massachusetts Institute of Technology | 9795 |
13 |
| Hitachi Metals, Ltd. | 2175 |
9 |
| H.C. Starck Solutions Coldwater, LLC | 31 |
9 |
| Kabushiki Kaisha Riken | 265 |
8 |
| Mitsubishi Materials Corporation | 2378 |
8 |
| Maxterial, Inc. | 27 |
8 |
| Toshiba Corporation | 12017 |
7 |
| The Regents of the University of California | 18943 |
6 |
| Abbott Cardiovascular Systems, Inc. | 1117 |
6 |
| H.C. Starck Inc. | 54 |
6 |
| JFE Precision Corporation | 15 |
5 |
| Other owners | 270 |