- All sections
- G - Physics
- G02B - Optical elements, systems or apparatus
- G02B 27/44 - Grating systemsZone plate systems
Patent holdings for IPC class G02B 27/44
Total number of patents in this class: 335
10-year publication summary
|
12
|
13
|
26
|
23
|
24
|
27
|
16
|
27
|
20
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Magic Leap, Inc. | 3291 |
26 |
| Microsoft Technology Licensing, LLC | 53910 |
14 |
| Vuzix Corporation | 217 |
11 |
| META Platforms Technologies, LLC | 5911 |
11 |
| Samsung Electronics Co., Ltd. | 147622 |
10 |
| Apple Inc. | 55446 |
8 |
| Nokia Corporation | 5549 |
8 |
| Applied Materials, Inc. | 18892 |
6 |
| Digilens, Inc. | 218 |
6 |
| Dispelix Oy | 139 |
6 |
| Lumentum Operations LLC | 739 |
6 |
| Boe Technology Group Co., Ltd. | 41547 |
5 |
| Leia Inc. | 407 |
5 |
| Panasonic Corporation | 20042 |
4 |
| Snap Inc. | 5976 |
4 |
| OVD Kinegram AG | 199 |
4 |
| Johnson & Johnson Surgical Vision, Inc. | 945 |
4 |
| Agc, Inc. | 4922 |
4 |
| The Regents of the University of California | 20087 |
3 |
| Canon Inc. | 40398 |
3 |
| Other owners | 187 |