- All sections
- E - Fixed constructions
- E04G - Scaffoldingformsshutteringbuilding implements or aids, or their usehandling building materials on the siterepairing, breaking-up or other work on existing buildings
- E04G 11/28 - Climbing forms, i.e. forms which are not in contact with the poured concrete during lifting from layer to layer
Patent holdings for IPC class E04G 11/28
Total number of patents in this class: 130
10-year publication summary
|
2
|
6
|
11
|
12
|
17
|
6
|
16
|
8
|
11
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| PERI SE | 419 |
20 |
| Doka GmbH | 152 |
14 |
| PERI GmbH | 168 |
10 |
| Apache Industrial Services, Inc. | 46 |
8 |
| PERI AG | 22 |
5 |
| Hunnebeck GmbH | 39 |
4 |
| Inventio AG | 2381 |
4 |
| HWS Concrete Towers S.L. | 12 |
4 |
| Forming Concepts, Inc. | 6 |
4 |
| Doka Industrie GmbH | 34 |
3 |
| ULMA C y E, S. Coop. | 106 |
3 |
| Despe S.p.A. | 17 |
2 |
| Wilian Holding Company | 49 |
2 |
| PERI Formwork Systems, Inc. | 6 |
2 |
| Forsa S.A. | 5 |
2 |
| China Construction Third Bureau First Engineering Co., Ltd. | 12 |
2 |
| China Construction Third Engineering Bureau Group Co., Ltd | 26 |
2 |
| China Nuclear Power Engineering Co., Ltd. | 253 |
1 |
| Dayton Superior Corporation | 102 |
1 |
| Grocon Pty Limited | 6 |
1 |
| Other owners | 36 |