- 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: 357
10-year publication summary
|
37
|
36
|
40
|
33
|
30
|
47
|
42
|
29
|
33
|
7
|
| 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Streamlight, Inc. | 385 |
34 |
| Milwaukee Electric Tool Corporation | 3032 |
26 |
| MAG Instrument, Inc. | 184 |
22 |
| SureFire, LLC | 332 |
15 |
| Designs for Vision, Inc. | 85 |
10 |
| Energizer Brands, LLC | 1008 |
9 |
| Black & Decker, Inc. | 2528 |
6 |
| Integra LifeSciences Corporation | 272 |
6 |
| Nite Ize, Inc. | 456 |
6 |
| Vector Products, Inc. | 188 |
5 |
| First-Light USA, LLC | 31 |
5 |
| The Coleman Company, Inc. | 684 |
4 |
| E. Mishan & Sons, Inc. | 425 |
4 |
| Jack Sealey Limited | 18 |
4 |
| Princeton Tectonics, Inc. | 49 |
4 |
| Walter R. Tucker Enterprises, Ltd. | 45 |
4 |
| Signify Holding B.V. | 6423 |
4 |
| Robert Bosch GmbH | 40162 |
3 |
| Stanley Black & Decker, Inc. | 596 |
3 |
| Alltemp Products Company Limited | 68 |
3 |
| Other owners | 180 |