- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 41/331 - Shaping or machining of piezo-electric or electrostrictive bodies by coating or depositing using masks, e.g. lift-off
Patent holdings for IPC class H01L 41/331
Total number of patents in this class: 45
10-year publication summary
|
10
|
9
|
6
|
2
|
1
|
1
|
1
|
1
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ricoh Company, Ltd. | 13299 |
6 |
| Murata Manufacturing Co., Ltd. | 25552 |
4 |
| FUJIFILM Corporation | 30277 |
3 |
| FUJIFILM Dimatix, Inc. | 252 |
3 |
| The Regents of the University of California | 20556 |
2 |
| Intel Corporation | 46681 |
2 |
| Seiko Epson Corporation | 20017 |
2 |
| Robert Bosch GmbH | 43631 |
2 |
| Qualcomm Incorporated | 90374 |
1 |
| Canon Inc. | 42342 |
1 |
| Georgia Tech Research Corporation | 2901 |
1 |
| Boe Technology Group Co., Ltd. | 43067 |
1 |
| Airbus Defence and Space GmbH | 867 |
1 |
| City University of Hong Kong | 933 |
1 |
| EMPA Eidgenössische Materialprüfungs-und Forschungsanstalt | 198 |
1 |
| General Interface Solution Limited | 186 |
1 |
| Interface Optoelectronics (Shenzhen) Co., Ltd. | 194 |
1 |
| Multiphoton Optics GmbH | 16 |
1 |
| National Research Council of Canada | 1541 |
1 |
| SnapTrack, Inc. | 536 |
1 |
| Other owners | 9 |