- All sections
- G - Physics
- G02B - Optical elements, systems or apparatus
- G02B 27/48 - Laser speckle optics
Patent holdings for IPC class G02B 27/48
Total number of patents in this class: 1032
10-year publication summary
|
109
|
91
|
99
|
91
|
108
|
83
|
55
|
41
|
31
|
38
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dai Nippon Printing Co., Ltd. | 4145 |
64 |
| Sony Corporation | 30769 |
38 |
| Seiko Epson Corporation | 19704 |
18 |
| Ricoh Company, Ltd. | 13368 |
18 |
| Microsoft Technology Licensing, LLC | 54340 |
17 |
| Digilens, Inc. | 228 |
17 |
| Google LLC | 43134 |
14 |
| Funai Electric Co., Ltd. | 518 |
13 |
| Corning Incorporated | 10385 |
12 |
| ASML Netherlands B.V. | 7593 |
12 |
| Hisense Laser Display Co., Ltd. | 415 |
12 |
| Robert Bosch GmbH | 43096 |
11 |
| IMAX Corporation | 264 |
11 |
| Olympus Corporation | 13095 |
10 |
| JVC Kenwood Corporation | 3065 |
10 |
| Hamamatsu Photonics K.K. | 4499 |
10 |
| Coretronic Corporation | 1309 |
10 |
| RealD Inc. | 258 |
10 |
| Koninklijke Philips Electronics N.V. | 8776 |
9 |
| Eastman Kodak Company | 2795 |
9 |
| Other owners | 707 |