- 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: 976
10-year publication summary
|
150
|
129
|
104
|
85
|
68
|
52
|
46
|
44
|
55
|
14
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Streamlight, Inc. | 434 |
71 |
| Milwaukee Electric Tool Corporation | 4714 |
43 |
| MAG Instrument, Inc. | 154 |
37 |
| Ledlenser GmbH & Co. KG | 115 |
14 |
| Zedel | 277 |
13 |
| Fuse, LLC | 120 |
12 |
| Panasonic Intellectual Property Management Co., Ltd. | 33120 |
11 |
| 9609385 Canada Inc. | 57 |
9 |
| Emissive Energy Corporation | 55 |
9 |
| Energizer Brands, LLC | 792 |
9 |
| Coast Cutlery Co. | 188 |
8 |
| The Coleman Company, Inc. | 644 |
8 |
| SureFire, LLC | 304 |
8 |
| Eveready Battery Company, Inc. | 204 |
7 |
| Nichia Corporation | 3803 |
7 |
| Promier Products Inc. | 119 |
7 |
| Acera LLC | 19 |
7 |
| Makita Corporation | 2505 |
6 |
| Alliance Sports Group, L.P., Bollinger Operating Corp. (Nevada Corporation) | 174 |
6 |
| Hangzhou Great Star Industrial Co., Ltd. | 676 |
6 |
| Other owners | 678 |