- All sections
- H - Electricity
- H01S - Devices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light; devices 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: 1611
10-year publication summary
|
115
|
156
|
141
|
179
|
159
|
145
|
115
|
104
|
86
|
27
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gigaphoton Inc. | 1120 |
190 |
| Cymer, LLC | 347 |
57 |
| Northrop Grumman Systems Corporation | 2940 |
48 |
| Raytheon Company | 8535 |
40 |
| NKT Photonics A/S | 215 |
34 |
| Fujikura Ltd. | 2777 |
30 |
| ASML Netherlands B.V. | 6816 |
29 |
| Coherent, Inc. | 337 |
29 |
| TRUMPF Laser GmbH | 149 |
22 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6132 |
19 |
| Massachusetts Institute of Technology | 9795 |
18 |
| IMRA America, Inc. | 174 |
17 |
| Mitsubishi Electric Corporation | 43934 |
16 |
| IPG Photonics Corporation | 494 |
16 |
| Thales | 1854 |
16 |
| Centre National de La Recherche Scientifique | 9632 |
14 |
| Lawrence Livermore National Security, LLC | 1834 |
14 |
| TRUMPF Lasersystems for Semiconductor Manufacturing GmbH | 81 |
14 |
| Friedrich-schiller-universität Jena | 172 |
14 |
| Panasonic Corporation of North America | 298 |
13 |
| Other owners | 961 |