- 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: 982
10-year publication summary
|
71
|
110
|
94
|
100
|
92
|
108
|
85
|
53
|
39
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dai Nippon Printing Co., Ltd. | 3891 |
68 |
| Sony Corporation | 32931 |
40 |
| Ricoh Company, Ltd. | 13266 |
18 |
| Digilens, Inc. | 195 |
18 |
| Seiko Epson Corporation | 18724 |
17 |
| Microsoft Technology Licensing, LLC | 51439 |
15 |
| Google LLC | 38759 |
15 |
| Funai Electric Co., Ltd. | 882 |
14 |
| Corning Incorporated | 9932 |
12 |
| IMAX Theatres International Limited | 81 |
11 |
| Robert Bosch GmbH | 40953 |
10 |
| Olympus Corporation | 13667 |
10 |
| ASML Netherlands B.V. | 6816 |
10 |
| JVC Kenwood Corporation | 2774 |
10 |
| Hamamatsu Photonics K.K. | 4161 |
10 |
| Coretronic Corporation | 1165 |
10 |
| RealD Inc. | 260 |
10 |
| Koninklijke Philips Electronics N.V. | 13133 |
9 |
| Eastman Kodak Company | 3444 |
9 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
9 |
| Other owners | 657 |