- 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: 386
10-year publication summary
|
33
|
30
|
47
|
42
|
30
|
37
|
37
|
27
|
34
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Milwaukee Electric Tool Corporation | 4958 |
43 |
| Streamlight, Inc. | 447 |
34 |
| Black & Decker, Inc. | 2446 |
16 |
| MAG Instrument, Inc. | 148 |
15 |
| Designs for Vision, Inc. | 108 |
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 | 1609 |
9 |
| SureFire, LLC | 308 |
7 |
| Walter R. Tucker Enterprises, Ltd. | 55 |
7 |
| Energizer Brands, LLC | 792 |
6 |
| Integra LifeSciences Corporation | 266 |
6 |
| First-Light USA, LLC | 30 |
5 |
| Nanjing Chervon Industry Co., Ltd. | 1281 |
5 |
| Robert Bosch GmbH | 44160 |
4 |
| Biolite, Inc. | 20 |
4 |
| Coast Cutlery Co. | 197 |
4 |
| Jack Sealey Limited | 20 |
4 |
| Nite Ize, Inc. | 499 |
4 |
| Pelican Products, Inc. | 262 |
4 |
| SimpliSafe, Inc. | 395 |
4 |
| Signify Holding B.V. | 8052 |
4 |
| Other owners | 191 |