- 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 13/04 - Combinations of only two kinds of elements the elements being reflectors and refractors
Patent holdings for IPC class F21V 13/04
Total number of patents in this class: 1130
10-year publication summary
|
209
|
183
|
147
|
125
|
103
|
112
|
85
|
67
|
54
|
11
|
| 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 |
87 |
| Ideal Industries Lighting LLC | 1316 |
52 |
| ABL IP Holding LLC | 1949 |
29 |
| OSRAM GmbH | 2675 |
26 |
| Zumtobel Lighting GmbH | 674 |
18 |
| LG Innotek Co., Ltd. | 5916 |
16 |
| Whelen Engineering Company, Inc. | 183 |
15 |
| LG Electronics Inc. | 66952 |
14 |
| Panasonic Intellectual Property Management Co., Ltd. | 26394 |
14 |
| Lumileds LLC | 1621 |
14 |
| Hubbell Lighting, Inc | 744 |
14 |
| Opple Lighting Co., Ltd. | 630 |
13 |
| Optovate Limited | 34 |
13 |
| Quarkstar LLC | 211 |
13 |
| Koninklijke Philips Electronics N.V. | 16714 |
12 |
| Stanley Electric Co., Ltd. | 1038 |
12 |
| Korrus, Inc. | 447 |
12 |
| Dialight Corporation | 237 |
11 |
| Enplas Corporation | 944 |
11 |
| Lighting Defense Group, LLC | 41 |
11 |
| Other owners | 723 |