- All sections
- C - Chemistry; metallurgy
- C01G - Compounds containing metals not covered by subclasses or
- C01G 41/00 - Compounds of tungsten
Patent holdings for IPC class C01G 41/00
Total number of patents in this class: 492
10-year publication summary
27
|
33
|
42
|
39
|
63
|
43
|
31
|
42
|
29
|
8
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Sumitomo Metal Mining Co., Ltd. | 1670 |
85 |
Toshiba Materials Co., Ltd. | 600 |
9 |
Uop LLC | 4083 |
8 |
Yeda Research and Development Co. Ltd. | 1266 |
8 |
Toshiba Corporation | 12017 |
7 |
Nanotech Industrial Solutions Inc. | 25 |
7 |
ExxonMobil Chemical Patents Inc. | 4286 |
6 |
Northwestern University | 3112 |
6 |
Skyworks Solutions, Inc. | 3450 |
6 |
University of Connecticut | 790 |
6 |
Shell Internationale Research Maatschappij B.V. | 3792 |
5 |
Shin-Etsu Chemical Co., Ltd. | 5132 |
5 |
A.L.M.T. Corp. | 209 |
5 |
Nanoco 2D Materials Limited | 16 |
5 |
Sumitomo Electric Industries, Ltd. | 14131 |
4 |
Mitsui Mining & Smelting Co., Ltd. | 1373 |
4 |
The Provost, Fellows, Foundation Scholars, and The Other Members of Board, of The College of The Holy and Undivided Trinity of Queen Elizabeth, Near Dublin | 157 |
4 |
Tokyo Institute of Technology | 1367 |
4 |
Umicore | 542 |
4 |
The University of Manchester | 456 |
4 |
Other owners | 300 |