- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F21L - Lighting devices or systems thereof, being portable or specially adapted for transportation
- F21L 4/04 - Electric lighting devices with self-contained electric batteries or cells characterised by provision of a light source housing portion adjustably fixed to the remainder of the device
Patent holdings for IPC class F21L 4/04
Total number of patents in this class: 371
10-year publication summary
|
40
|
33
|
30
|
47
|
42
|
30
|
37
|
36
|
26
|
18
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Milwaukee Electric Tool Corporation | 4310 |
38 |
| Streamlight, Inc. | 409 |
32 |
| MAG Instrument, Inc. | 160 |
16 |
| Black & Decker, Inc. | 2408 |
13 |
| Designs for Vision, Inc. | 95 |
10 |
| Energizer Brands, LLC | 819 |
8 |
| Techtronic Cordless GP, Gainful Plan Trading Limited, an entity organized in the British Virgin Islands and TTI Finance Ltd., an entity organized in the British Virgin Islands | 1587 |
8 |
| SureFire, LLC | 307 |
7 |
| Walter R. Tucker Enterprises, Ltd. | 53 |
7 |
| Integra LifeSciences Corporation | 275 |
6 |
| First-Light USA, LLC | 30 |
5 |
| Robert Bosch GmbH | 42596 |
4 |
| Vector Products, Inc. | 164 |
4 |
| Biolite, Inc. | 20 |
4 |
| E. Mishan & Sons, Inc. | 516 |
4 |
| Jack Sealey Limited | 20 |
4 |
| Nanjing Chervon Industry Co., Ltd. | 1046 |
4 |
| Nite Ize, Inc. | 482 |
4 |
| Signify Holding B.V. | 7443 |
4 |
| The Coleman Company, Inc. | 651 |
3 |
| Other owners | 186 |