- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 363
10-year publication summary
|
36
|
40
|
33
|
30
|
47
|
42
|
30
|
35
|
33
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Streamlight, Inc. | 394 |
33 |
| Milwaukee Electric Tool Corporation | 3572 |
32 |
| MAG Instrument, Inc. | 174 |
19 |
| Designs for Vision, Inc. | 88 |
10 |
| Black & Decker, Inc. | 2402 |
9 |
| Energizer Brands, LLC | 835 |
9 |
| SureFire, LLC | 306 |
9 |
| Integra LifeSciences Corporation | 278 |
6 |
| Vector Products, Inc. | 178 |
5 |
| First-Light USA, LLC | 30 |
5 |
| Nite Ize, Inc. | 432 |
5 |
| Walter R. Tucker Enterprises, Ltd. | 49 |
5 |
| 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 | 1544 |
5 |
| E. Mishan & Sons, Inc. | 477 |
4 |
| Jack Sealey Limited | 20 |
4 |
| Princeton Tectonics, Inc. | 48 |
4 |
| Signify Holding B.V. | 6837 |
4 |
| Robert Bosch GmbH | 40953 |
3 |
| Stanley Black & Decker, Inc. | 587 |
3 |
| Biolite, Inc. | 21 |
3 |
| Other owners | 186 |