- All sections
- E - Fixed constructions
- E04D - Roof coveringssky-lightsguttersroof-working tools
- E04D 1/04 - Grooved or vaulted roofing elements of ceramics, glass or concrete, with or without reinforcement
Patent holdings for IPC class E04D 1/04
Total number of patents in this class: 25
10-year publication summary
|
4
|
6
|
1
|
1
|
2
|
1
|
4
|
1
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kuraray Co., Ltd. | 3568 |
4 |
| Monier Roofing GmbH | 14 |
2 |
| Shijiazhuang Nikka Mintech Co., Ltd. | 3 |
2 |
| Dal-tile, LLC | 74 |
2 |
| 3m Innovative Properties Company | 17509 |
1 |
| Chevron U.S.A. Inc. | 4092 |
1 |
| Denka Company Limited | 2702 |
1 |
| Forticrete Limited | 5 |
1 |
| HCH Spolka zo.o. | 2 |
1 |
| Kasai Industry Co., Ltd. | 5 |
1 |
| Monier Technical Centre GmbH | 7 |
1 |
| Tondach Gleinstätten AG | 1 |
1 |
| FUJISLATE Co., Ltd. | 2 |
1 |
| Abece AB | 2 |
1 |
| BMI Group Holdings UK Limited | 53 |
1 |
| Aertetto S.r.l. | 2 |
1 |
| Nagoya Denki Educational Foundation | 24 |
1 |
| BMI Group Holdings UK Limited | 1 |
1 |
| Shanghai Construction Decoration Engineering Group Co., Ltd | 8 |
1 |
| Other owners | 0 |