- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 21/338 - Field-effect transistors with a Schottky gate
Patent holdings for IPC class H01L 21/338
Total number of patents in this class: 1424
10-year publication summary
|
92
|
71
|
57
|
44
|
61
|
63
|
54
|
74
|
61
|
26
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Corporation | 20099 |
72 |
| Mitsubishi Electric Corporation | 46127 |
72 |
| Sharp Kabushiki Kaisha | 18738 |
69 |
| Panasonic Intellectual Property Management Co., Ltd. | 31475 |
60 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 42804 |
55 |
| Rohm Co., Ltd. | 6459 |
54 |
| Sumitomo Chemical Company, Limited | 9047 |
49 |
| Sumitomo Electric Industries, Ltd. | 15495 |
46 |
| Fujitsu Limited | 18366 |
40 |
| Nippon Telegraph and Telephone Corporation | 17346 |
36 |
| Denso Corporation | 24316 |
32 |
| Sony Semiconductor Solutions Corporation | 10467 |
30 |
| NEC Corporation | 35687 |
29 |
| NGK Insulators, Ltd. | 4964 |
28 |
| Flosfia Inc. | 233 |
23 |
| International Business Machines Corporation | 61257 |
22 |
| Samsung Electronics Co., Ltd. | 146346 |
21 |
| GLOBALFOUNDRIES U.S. Inc. | 6432 |
21 |
| Sanken Electric Co., Ltd. | 452 |
18 |
| The Furukawa Electric Co., Ltd. | 3652 |
16 |
| Other owners | 631 |