- All sections
- E - Fixed constructions
- E04F - Finishing work on buildings, e.g. stairs, floors
- E04F 11/09 - Tread-and-riser units
Patent holdings for IPC class E04F 11/09
Total number of patents in this class: 29
10-year publication summary
|
1
|
5
|
2
|
6
|
3
|
5
|
3
|
2
|
4
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Garland Industries, Inc. | 104 |
2 |
| Georgia Tech Research Corporation | 2954 |
1 |
| bullfrog International, L.C. | 85 |
1 |
| Case-modular Stair Systems Inc. | 3 |
1 |
| CSR Building Products Limited | 45 |
1 |
| EAA Research Engineer Pty Ltd | 4 |
1 |
| Emory University | 1724 |
1 |
| Jiangsu Huning Steel; Mechanism Co., Ltd | 12 |
1 |
| Pearls Miihome IP Pty Ltd | 5 |
1 |
| Radio Systems Corporation | 618 |
1 |
| Trivector Manufacturing | 1 |
1 |
| UPM-Kymmene Corporation | 993 |
1 |
| Clickstair Pty Ltd | 3 |
1 |
| Hydra Pools, Inc. | 12 |
1 |
| Changzhou Vocational Institute of Engineering | 9 |
1 |
| Form Robotics, Inc. | 2 |
1 |
| COUTURE, Armande | 1 |
1 |
| Goshawk Engineering Pty Ltd | 2 |
1 |
| Humeneq AS | 2 |
1 |
| Rubner Holzbau S.r.l. | 1 |
1 |
| Other owners | 8 |