- All sections
- E - Fixed constructions
- E04F - Finishing work on buildings, e.g. stairs, floors
- E04F 21/12 - Mechanical implements acting by gas pressure, e.g. steam pressure
Patent holdings for IPC class E04F 21/12
Total number of patents in this class: 65
10-year publication summary
|
4
|
6
|
12
|
5
|
11
|
5
|
3
|
10
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canvas Construction, Inc. | 28 |
13 |
| Ez-pro Texture Inc. | 12 |
8 |
| Saint-Gobain Isover | 627 |
7 |
| PPG Architectural Finishes, Inc. | 637 |
3 |
| Guangdong Bright Dream Robotics Co., Ltd. | 163 |
3 |
| Albion Engineering Company | 28 |
2 |
| Graco Minnesota Inc. | 1162 |
2 |
| Level 5 Tools, LLC | 20 |
2 |
| Q-bot Limited | 30 |
2 |
| Sika Technology AG | 2840 |
2 |
| EURL Baumer Damien | 2 |
2 |
| R.u.r. Czech A.S. | 2 |
2 |
| Shin-Etsu Chemical Co., Ltd. | 5437 |
1 |
| Anest Iwata Corporation | 159 |
1 |
| APLA-TECH, Inc. | 5 |
1 |
| Axia Acquistion Corporation | 2 |
1 |
| Construction Research & Technology GmbH | 651 |
1 |
| Denki Kagaku Kogyo Kabushiki Kaisha | 651 |
1 |
| LIXIL Corporation | 656 |
1 |
| Nippon Oil Corporation | 311 |
1 |
| Other owners | 9 |