- All sections
- E - Fixed constructions
- E04F - Finishing work on buildings, e.g. stairs, floors
- E04F 21/05 - Supports for jointing rulers
Patent holdings for IPC class E04F 21/05
Total number of patents in this class: 13
10-year publication summary
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0
|
1
|
0
|
4
|
1
|
3
|
2
|
2
|
4
|
0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shaw Craftsman Concrete, LLC | 26 |
4 |
| Dragon Screed, LLC | 9 |
3 |
| United States Gypsum Company | 913 |
2 |
| Cemex Research Group AG | 36 |
1 |
| Luke Murnice Kuesel | 1 |
1 |
| Michael Yehud | 1 |
1 |
| TRU 2 Level Ltd | 1 |
1 |
| Other owners | 0 |