- All sections
- E - Fixed constructions
- E04G - Scaffolding; forms; shuttering; building implements or aids, or their use; handling building materials on the site; repairing, breaking-up or other work on existing buildings
- E04G 21/12 - Mounting of reinforcing inserts; Prestressing
Patent holdings for IPC class E04G 21/12
Total number of patents in this class: 553
10-year publication summary
|
35
|
48
|
42
|
67
|
49
|
60
|
58
|
45
|
57
|
20
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Max Co., Ltd. | 880 |
157 |
| Makita Corporation | 2339 |
40 |
| Soletanche Freyssinet | 480 |
12 |
| Sumitomo Electric Industries, Ltd. | 14131 |
10 |
| Husqvarna AB | 2824 |
10 |
| Sumitomo (SEI) Steel Wire Corp. | 48 |
8 |
| Tymatic Limited | 9 |
8 |
| re-Fer AG | 16 |
7 |
| SCHNELL S.p.A. | 84 |
7 |
| Ken Robotech Corp. | 8 |
6 |
| VSL International AG | 86 |
5 |
| Robert Bosch GmbH | 40953 |
4 |
| Dayton Superior Corporation | 104 |
4 |
| Lehigh University | 160 |
4 |
| Peikko Group Oy | 157 |
4 |
| Total PS Co., Ltd. | 4 |
4 |
| Seoul National University R&db Foundation | 2976 |
4 |
| Big Time Investment, LLC | 37 |
4 |
| Anderson Technology Corporation | 4 |
4 |
| Philipp GmbH | 5 |
4 |
| Other owners | 247 |