- 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: 323
10-year publication summary
|
14
|
28
|
26
|
28
|
29
|
16
|
30
|
21
|
18
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Magic Leap, Inc. | 3391 |
29 |
| Microsoft Technology Licensing, LLC | 54439 |
14 |
| META Platforms Technologies, LLC | 6450 |
12 |
| Vuzix Corporation | 239 |
11 |
| Samsung Electronics Co., Ltd. | 157557 |
10 |
| Apple Inc. | 58705 |
8 |
| Nokia Corporation | 4790 |
6 |
| Digilens, Inc. | 236 |
6 |
| Wells Fargo Bank, National Association, AS Collateral Agent | 878 |
6 |
| Applied Materials, Inc. | 20363 |
5 |
| Boe Technology Group Co., Ltd. | 44004 |
5 |
| Dispelix Oy | 142 |
5 |
| Panasonic Corporation | 19060 |
4 |
| Snap Inc. | 6736 |
4 |
| Leia Inc. | 423 |
4 |
| Agc, Inc. | 5502 |
4 |
| The Regents of the University of California | 20720 |
3 |
| Canon Inc. | 43768 |
3 |
| ASML Netherlands B.V. | 7906 |
3 |
| California Institute of Technology | 4043 |
3 |
| Other owners | 178 |