- 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 3/091 - Processes or apparatus for excitation, e.g. pumping using optical pumping
Patent holdings for IPC class H01S 3/091
Total number of patents in this class: 380
10-year publication summary
|
29
|
22
|
27
|
25
|
26
|
20
|
25
|
30
|
24
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamamatsu Photonics K.K. | 4388 |
12 |
| Fujikura Ltd. | 2906 |
11 |
| NEC Corporation | 35351 |
9 |
| Massachusetts Institute of Technology | 10013 |
9 |
| Boston Scientific Scimed, Inc. | 10126 |
6 |
| BAE Systems Information and Electronic Systems Integration Inc. | 1815 |
6 |
| Energetiq Technology, Inc. | 49 |
6 |
| Institut National D'optique | 304 |
6 |
| Lumentum Operations LLC | 728 |
6 |
| nLIGHT, Inc. | 404 |
6 |
| Raytheon Company | 8388 |
5 |
| The United States of America as represented by the Secretary of the Navy | 2735 |
5 |
| Lawrence Livermore National Security, LLC | 1925 |
5 |
| Coherent, Inc. | 319 |
5 |
| IPG Photonics Corporation | 523 |
5 |
| KLA-Tencor Corporation | 2546 |
4 |
| Maxphotonics Co., Ltd. | 43 |
4 |
| Seyond, Inc. | 130 |
4 |
| Samsung Electronics Co., Ltd. | 144143 |
3 |
| The Regents of the University of California | 19812 |
3 |
| Other owners | 260 |