- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F21V - Functional features or details of lighting devices or systems thereof; structural combinations of lighting devices with other articles, not otherwise provided for
- F21V 5/04 - Refractors for light sources of lens shape
Patent holdings for IPC class F21V 5/04
Total number of patents in this class: 4018
10-year publication summary
|
380
|
502
|
453
|
497
|
458
|
436
|
340
|
321
|
272
|
61
|
| 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Signify Holding B.V. | 6423 |
192 |
| Ideal Industries Lighting LLC | 1316 |
96 |
| Enplas Corporation | 944 |
89 |
| Opple Lighting Co., Ltd. | 630 |
81 |
| ABL IP Holding LLC | 1949 |
62 |
| Suzhou Opple Lighting Co., Ltd. | 411 |
62 |
| Nichia Corporation | 2994 |
59 |
| Sharp Kabushiki Kaisha | 18949 |
53 |
| OSRAM GmbH | 2675 |
52 |
| LG Innotek Co., Ltd. | 5916 |
49 |
| Panasonic Intellectual Property Management Co., Ltd. | 26394 |
47 |
| Koito Manufacturing Co., Ltd. | 1791 |
46 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1886 |
46 |
| Seoul Semiconductor Co., Ltd. | 1065 |
39 |
| Samsung Electronics Co., Ltd. | 120977 |
36 |
| Korrus, Inc. | 447 |
35 |
| Lumileds LLC | 1621 |
32 |
| Sony Corporation | 36812 |
31 |
| Panasonic Corporation | 21881 |
31 |
| Hubbell Lighting, Inc | 744 |
30 |
| Other owners | 2850 |