- All sections
- H - Electricity
- H01S - Devices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate lightdevices using stimulated emission of electromagnetic radiation in wave ranges other than optical
- H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
Patent holdings for IPC class H01S 3/23
Total number of patents in this class: 1828
10-year publication summary
|
140
|
179
|
161
|
146
|
117
|
115
|
96
|
96
|
104
|
65
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gigaphoton Inc. | 1328 |
207 |
| Cymer, LLC | 415 |
87 |
| Northrop Grumman Systems Corporation | 2913 |
51 |
| ASML Netherlands B.V. | 7954 |
43 |
| Raytheon Company | 8443 |
42 |
| NKT Photonics A/S | 270 |
37 |
| Fujikura Ltd. | 3098 |
36 |
| Coherent, Inc. | 294 |
27 |
| TRUMPF Laser GmbH | 158 |
24 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6126 |
19 |
| Mitsubishi Electric Corporation | 48097 |
17 |
| Massachusetts Institute of Technology | 10259 |
17 |
| IPG Photonics Corporation | 588 |
17 |
| TRUMPF Lasersystems for Semiconductor Manufacturing GmbH | 94 |
17 |
| Centre National de La Recherche Scientifique | 11042 |
16 |
| Wells Fargo Bank, National Association, AS Collateral Agent | 880 |
16 |
| Friedrich-schiller-universität Jena | 180 |
14 |
| WBC Photonics, Inc. | 136 |
14 |
| Lawrence Livermore National Security, LLC | 1978 |
13 |
| The Furukawa Electric Co., Ltd. | 3700 |
13 |
| Other owners | 1101 |