- All sections
- E - Fixed constructions
- E04D - Roof coveringssky-lightsguttersroof-working tools
- E04D 13/035 - Sky-lightsDomesVentilating sky-lights characterised by having movable parts
Patent holdings for IPC class E04D 13/035
Total number of patents in this class: 142
10-year publication summary
|
7
|
5
|
7
|
11
|
21
|
8
|
17
|
10
|
11
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| VKR Holding A/S | 567 |
77 |
| Fakro PP Spolka Z O.O. | 12 |
5 |
| VKR Holding A/S | 15 |
3 |
| Outdoor Elements | 10 |
3 |
| DTS Enterprises, Inc. | 4 |
2 |
| Solatube International, Inc. | 63 |
2 |
| GDX LLC | 2 |
2 |
| Zhejiang Dosoly Mechanical and Electrical Technology Co., Ltd. | 3 |
2 |
| Fakro PP Spolka z o. o. | 11 |
2 |
| 'rewa' Sp. z o.o. | 3 |
2 |
| Marvin Lumber and Cedar Company, LLC | 69 |
2 |
| The Metal Window Co Ltd (Incorporated in The United Kingdom) | 3 |
2 |
| Huawei Technologies Co., Ltd. | 113689 |
1 |
| Atwood Mobile Products, LLC | 3 |
1 |
| Bilco Company, The | 24 |
1 |
| Dometic Sweden AB | 559 |
1 |
| Nhk-keskus Oy | 5 |
1 |
| North Carolina State University | 1570 |
1 |
| Precision Ladders, LLC | 3 |
1 |
| Roto Frank AG | 80 |
1 |
| Other owners | 30 |