- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F21L - Lighting devices or systems thereof, being portable or specially adapted for transportation
- F21L 4/02 - Electric lighting devices with self-contained electric batteries or cells characterised by provision of two or more light sources
Patent holdings for IPC class F21L 4/02
Total number of patents in this class: 579
10-year publication summary
|
91
|
81
|
70
|
77
|
66
|
47
|
57
|
32
|
52
|
23
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Milwaukee Electric Tool Corporation | 4967 |
34 |
| Streamlight, Inc. | 447 |
28 |
| Promier Products Inc. | 121 |
19 |
| Walter R. Tucker Enterprises, Ltd. | 55 |
11 |
| Wchambe Investments, L.L.C. | 15 |
11 |
| Alliance Sports Group, L.P., Bollinger Operating Corp. (Nevada Corporation) | 174 |
10 |
| Archangel Device LLC | 53 |
10 |
| Eveready Battery Company, Inc. | 176 |
9 |
| MAG Instrument, Inc. | 146 |
9 |
| Black & Decker, Inc. | 2445 |
8 |
| MPOWERD, Inc. | 31 |
8 |
| Infinity X1 LLC | 73 |
8 |
| Coast Cutlery Co. | 197 |
7 |
| Luminaid Lab LLC | 26 |
7 |
| SureFire, LLC | 308 |
7 |
| The Coleman Company, Inc. | 628 |
6 |
| Energizer Brands, LLC | 793 |
6 |
| First-Light USA, LLC | 31 |
6 |
| Ningbo Futai Electric Limited | 69 |
6 |
| West Coast Imports, Inc. | 81 |
6 |
| Other owners | 363 |