- All sections
- E - Fixed constructions
- E04B - General building constructionswalls, e.g. partitionsroofsfloorsceilingsinsulation or other protection of buildings
- E04B 1/21 - Connections specially adapted therefor
Patent holdings for IPC class E04B 1/21
Total number of patents in this class: 217
10-year publication summary
|
21
|
28
|
22
|
26
|
21
|
13
|
21
|
18
|
30
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Peikko Group Oy | 171 |
15 |
| Tindall Corporation | 52 |
10 |
| Hainan University | 171 |
9 |
| Svein Berg Holding AS | 21 |
6 |
| South China University of Technology | 1924 |
5 |
| Seoul National University R&db Foundation | 4259 |
5 |
| Euro Engineering Co., Ltd. | 8 |
5 |
| Elastic Potential, S.L. | 9 |
4 |
| Ruentex Engineering & Construction Co., Ltd. | 34 |
4 |
| Senvex Co., Ltd. | 28 |
4 |
| Holmes Solutions Limited Partnership | 27 |
3 |
| ALP Supply, Inc. | 41 |
3 |
| Sumitomo Mitsui Construction Co., Ltd. | 71 |
3 |
| Gruppo Piccini S.P.A. | 5 |
3 |
| China State Construction Engineering Corporation Limited | 26 |
3 |
| M3s IP Pty Ltd | 6 |
3 |
| Cscon S.r.l. | 3 |
3 |
| N´h Holding AG Lungern | 5 |
3 |
| Hilti Aktiengesellschaft | 3723 |
2 |
| The Florida International University Board of Trustees | 685 |
2 |
| Other owners | 122 |