- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F21L - Lighting devices or systems thereof, being portable or specially adapted for transportation
- F21L 4/00 - Electric lighting devices with self-contained electric batteries or cells
Patent holdings for IPC class F21L 4/00
Total number of patents in this class: 978
10-year publication summary
|
157
|
134
|
111
|
94
|
78
|
54
|
50
|
46
|
58
|
28
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Streamlight, Inc. | 447 |
72 |
| Milwaukee Electric Tool Corporation | 4958 |
42 |
| MAG Instrument, Inc. | 148 |
37 |
| Zedel | 288 |
14 |
| Ledlenser GmbH & Co. KG | 115 |
14 |
| Fuse, LLC | 115 |
12 |
| Panasonic Intellectual Property Management Co., Ltd. | 33997 |
11 |
| Emissive Energy Corporation | 59 |
9 |
| Energizer Brands, LLC | 792 |
9 |
| 9609385 Canada Inc. | 56 |
8 |
| Coast Cutlery Co. | 197 |
8 |
| Promier Products Inc. | 121 |
8 |
| SureFire, LLC | 308 |
8 |
| Eveready Battery Company, Inc. | 176 |
7 |
| Nichia Corporation | 3874 |
7 |
| The Coleman Company, Inc. | 629 |
7 |
| Acera LLC | 21 |
7 |
| Makita Corporation | 2566 |
6 |
| Alliance Sports Group, L.P., Bollinger Operating Corp. (Nevada Corporation) | 174 |
6 |
| Hangzhou Great Star Industrial Co., Ltd. | 693 |
6 |
| Other owners | 680 |