- All sections
- E - Fixed constructions
- E04D - Roof coverings; sky-lights; gutters; roof-working tools
- E04D 3/08 - Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of glass or other translucent material; Fixing means therefor with metal glazing bars
Patent holdings for IPC class E04D 3/08
Total number of patents in this class: 33
10-year publication summary
|
4
|
4
|
3
|
5
|
1
|
2
|
0
|
2
|
0
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ultraframe (UK) Limited | 47 |
8 |
| Bellwether Design Technologies, LLC | 5 |
2 |
| HMT LLC, FORMERLY HMT Inc. | 35 |
2 |
| Lumon Invest Oy | 52 |
2 |
| Stobag AG | 17 |
2 |
| Jansen AG | 34 |
1 |
| Palram Industries (1990) Ltd. | 21 |
1 |
| Renson Sunprotection-Screens NV | 65 |
1 |
| Schuco International KG | 179 |
1 |
| Tanglewood Conservatories Ltd. | 2 |
1 |
| Sepalumic | 4 |
1 |
| Duo-gard Industries Inc. | 7 |
1 |
| Faraone S.r.l. | 10 |
1 |
| Actif Energies Vertes | 1 |
1 |
| Fakro PP Spolka z o. o. | 11 |
1 |
| L&T Construction | 2 |
1 |
| Lamilux Heinrich Strunz GmbH | 1 |
1 |
| Mecosun | 1 |
1 |
| Xiangzheng Energy Technology Ranch Co., Ltd. | 3 |
1 |
| Laurens Leonard J. Claeys | 10 |
1 |
| Other owners | 2 |