- 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: 1722
10-year publication summary
156
|
140
|
179
|
161
|
146
|
117
|
111
|
89
|
93
|
56
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Gigaphoton Inc. | 1226 |
196 |
Cymer, LLC | 384 |
76 |
Northrop Grumman Systems Corporation | 2943 |
50 |
Raytheon Company | 8397 |
40 |
NKT Photonics A/S | 249 |
38 |
ASML Netherlands B.V. | 7371 |
35 |
Fujikura Ltd. | 2925 |
34 |
Coherent, Inc. | 320 |
29 |
TRUMPF Laser GmbH | 159 |
24 |
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6112 |
19 |
Massachusetts Institute of Technology | 10041 |
18 |
Mitsubishi Electric Corporation | 45998 |
17 |
IPG Photonics Corporation | 529 |
17 |
TRUMPF Lasersystems for Semiconductor Manufacturing GmbH | 94 |
17 |
Thales | 1848 |
15 |
Centre National de La Recherche Scientifique | 10418 |
14 |
Friedrich-schiller-universität Jena | 181 |
14 |
WBC Photonics, Inc. | 136 |
14 |
Lawrence Livermore National Security, LLC | 1934 |
13 |
The Furukawa Electric Co., Ltd. | 3645 |
13 |
Other owners | 1029 |