- 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: 527
10-year publication summary
|
71
|
86
|
91
|
81
|
70
|
77
|
64
|
47
|
53
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Milwaukee Electric Tool Corporation | 3572 |
26 |
| Streamlight, Inc. | 394 |
26 |
| MAG Instrument, Inc. | 174 |
11 |
| Promier Products Inc. | 100 |
11 |
| Eveready Battery Company, Inc. | 267 |
10 |
| Alliance Sports Group, L.P., Bollinger Operating Corp. (Nevada Corporation) | 182 |
10 |
| Walter R. Tucker Enterprises, Ltd. | 49 |
10 |
| MPOWERD, Inc. | 34 |
8 |
| Coast Cutlery Co. | 160 |
7 |
| The Coleman Company, Inc. | 663 |
7 |
| Luminaid Lab LLC | 25 |
7 |
| SureFire, LLC | 306 |
7 |
| Wchambe Investments, L.L.C. | 11 |
7 |
| Archangel Device LLC | 35 |
6 |
| First-Light USA, LLC | 30 |
6 |
| Black & Decker, Inc. | 2402 |
5 |
| Ledvance LLC | 336 |
5 |
| Schumacher Electric Corporation | 122 |
5 |
| West Coast Imports, Inc. | 67 |
5 |
| 9609385 Canada Inc. | 61 |
4 |
| Other owners | 344 |