- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F21L - Lighting devices or systems thereof, being portable or specially adapted for transportation
- F21L 4/08 - Electric lighting devices with self-contained electric batteries or cells characterised by means for in situ recharging of the batteries or cells
Patent holdings for IPC class F21L 4/08
Total number of patents in this class: 398
10-year publication summary
|
79
|
82
|
69
|
105
|
76
|
65
|
46
|
56
|
42
|
13
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Milwaukee Electric Tool Corporation | 3572 |
23 |
| Streamlight, Inc. | 394 |
21 |
| MPOWERD, Inc. | 34 |
16 |
| Luminaid Lab LLC | 25 |
13 |
| MAG Instrument, Inc. | 174 |
13 |
| Vector Products, Inc. | 178 |
9 |
| Walter R. Tucker Enterprises, Ltd. | 49 |
9 |
| TTP Holdings LLC | 10 |
6 |
| Eveready Battery Company, Inc. | 267 |
5 |
| Armament Systems and Procedures, Inc. | 170 |
5 |
| Pelican Products, Inc. | 201 |
5 |
| L&L Candle Company, LLC | 275 |
5 |
| Bollinger Industries, Inc., a de Corp. | 130 |
5 |
| Black & Decker, Inc. | 2402 |
4 |
| Alltemp Products Company Limited | 60 |
4 |
| Coast Cutlery Co. | 160 |
4 |
| E. Mishan & Sons, Inc. | 477 |
4 |
| Nite Ize, Inc. | 432 |
4 |
| Illinois Tool Works Inc. | 11152 |
3 |
| 9609385 Canada Inc. | 61 |
3 |
| Other owners | 237 |