- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 998
10-year publication summary
|
155
|
160
|
146
|
157
|
134
|
111
|
94
|
78
|
51
|
11
|
| 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Streamlight, Inc. | 385 |
64 |
| MAG Instrument, Inc. | 184 |
41 |
| Milwaukee Electric Tool Corporation | 3047 |
33 |
| Zedel | 216 |
13 |
| Emissive Energy Corporation | 61 |
12 |
| Panasonic Intellectual Property Management Co., Ltd. | 26502 |
11 |
| Eveready Battery Company, Inc. | 310 |
11 |
| Alltemp Products Company Limited | 68 |
11 |
| Energizer Brands, LLC | 1006 |
10 |
| Fuse, LLC | 111 |
10 |
| 9609385 Canada Inc. | 62 |
9 |
| Ledlenser GmbH & Co. KG | 97 |
9 |
| Coast Cutlery Co. | 153 |
8 |
| The Coleman Company, Inc. | 685 |
8 |
| SureFire, LLC | 332 |
8 |
| Zweibrüder Optoelectronics GmbH & Co. KG | 19 |
8 |
| Signify Holding B.V. | 6441 |
8 |
| OSRAM SYLVANIA Inc. | 815 |
7 |
| Guangdong Jetfast Portable Lighting Co., Ltd. | 29 |
7 |
| Promier Products Inc. | 95 |
7 |
| Other owners | 703 |