- 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: 1790
10-year publication summary
|
139
|
175
|
159
|
142
|
116
|
111
|
89
|
94
|
102
|
21
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gigaphoton Inc. | 1296 |
203 |
| Cymer, LLC | 405 |
82 |
| Northrop Grumman Systems Corporation | 2930 |
51 |
| Raytheon Company | 8479 |
41 |
| ASML Netherlands B.V. | 7697 |
39 |
| NKT Photonics A/S | 265 |
38 |
| Fujikura Ltd. | 3035 |
35 |
| Coherent, Inc. | 300 |
27 |
| TRUMPF Laser GmbH | 159 |
24 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6109 |
19 |
| Mitsubishi Electric Corporation | 47483 |
17 |
| Massachusetts Institute of Technology | 10201 |
17 |
| IPG Photonics Corporation | 569 |
17 |
| Lumentum Operations LLC | 906 |
17 |
| TRUMPF Lasersystems for Semiconductor Manufacturing GmbH | 94 |
17 |
| Centre National de La Recherche Scientifique | 10855 |
16 |
| Friedrich-schiller-universität Jena | 179 |
14 |
| WBC Photonics, Inc. | 136 |
14 |
| Lawrence Livermore National Security, LLC | 1956 |
13 |
| The Furukawa Electric Co., Ltd. | 3713 |
13 |
| Other owners | 1076 |