- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F21L - Lighting devices or systems thereof, being portable or specially adapted for transportation
- F21L 4/02 - Electric lighting devices with self-contained electric batteries or cells characterised by provision of two or more light sources
Patent holdings for IPC class F21L 4/02
Total number of patents in this class: 518
10-year publication summary
|
66
|
71
|
86
|
91
|
81
|
70
|
78
|
63
|
45
|
10
|
| 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Streamlight, Inc. | 385 |
29 |
| Milwaukee Electric Tool Corporation | 3032 |
24 |
| MAG Instrument, Inc. | 184 |
11 |
| Eveready Battery Company, Inc. | 315 |
10 |
| Walter R. Tucker Enterprises, Ltd. | 45 |
10 |
| MPOWERD, Inc. | 34 |
9 |
| Alliance Sports Group, L.P., Bollinger Operating Corp. (Nevada Corporation) | 175 |
8 |
| Coast Cutlery Co. | 153 |
8 |
| Promier Products Inc. | 95 |
8 |
| SureFire, LLC | 332 |
8 |
| The Coleman Company, Inc. | 684 |
7 |
| Archangel Device LLC | 27 |
5 |
| Boss Ltg, Inc. | 12 |
5 |
| First-Light USA, LLC | 31 |
5 |
| Ledvance LLC | 343 |
5 |
| Light & Motion Industries | 40 |
5 |
| Ningbo Futai Electric Limited | 54 |
5 |
| Schumacher Electric Corporation | 121 |
5 |
| IdeaPond LLC | 40 |
5 |
| Signify Holding B.V. | 6423 |
5 |
| Other owners | 341 |