- 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: 380
10-year publication summary
|
35
|
31
|
29
|
44
|
35
|
30
|
36
|
31
|
26
|
29
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Milwaukee Electric Tool Corporation | 4595 |
40 |
| Streamlight, Inc. | 420 |
33 |
| MAG Instrument, Inc. | 155 |
16 |
| Black & Decker, Inc. | 2408 |
14 |
| Designs for Vision, Inc. | 100 |
10 |
| 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 | 1612 |
9 |
| Energizer Brands, LLC | 788 |
7 |
| SureFire, LLC | 306 |
7 |
| Walter R. Tucker Enterprises, Ltd. | 56 |
7 |
| Integra LifeSciences Corporation | 274 |
6 |
| First-Light USA, LLC | 30 |
5 |
| Nanjing Chervon Industry Co., Ltd. | 1141 |
5 |
| Robert Bosch GmbH | 43096 |
4 |
| Vector Products, Inc. | 162 |
4 |
| Biolite, Inc. | 20 |
4 |
| Jack Sealey Limited | 20 |
4 |
| Nite Ize, Inc. | 483 |
4 |
| Pelican Products, Inc. | 253 |
4 |
| Signify Holding B.V. | 7717 |
4 |
| Alliance Sports Group, L.P., Bollinger Operating Corp. (Nevada Corporation) | 172 |
3 |
| Other owners | 190 |