- All sections
- E - Fixed constructions
- E04F - Finishing work on buildings, e.g. stairs, floors
- E04F 17/12 - Chutes
Patent holdings for IPC class E04F 17/12
Total number of patents in this class: 31
10-year publication summary
|
6
|
5
|
3
|
2
|
2
|
1
|
4
|
5
|
1
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MariCap Oy | 182 |
7 |
| Premium Patents Sdn. Bhd | 4 |
3 |
| Envac Centralsug AB | 5 |
3 |
| Envac AB | 50 |
2 |
| Precision AirConvey Corporation | 5 |
2 |
| ShinMaywa Industries, Ltd. | 196 |
2 |
| BER Oy | 3 |
2 |
| Chazem Manufacturing, LLC | 3 |
1 |
| Google LLC | 38759 |
1 |
| Logiwaste AB | 4 |
1 |
| Premium Patents Snd. Bhd | 1 |
1 |
| Prolitec Inc. | 76 |
1 |
| Schoeck Bauteile GmbH | 3 |
1 |
| Henry, Drew P. | 1 |
1 |
| LW IMR AB | 2 |
1 |
| Easy Chute LLC | 6 |
1 |
| Fentian Nominees Pty Ltd | 1 |
1 |
| Other owners | 0 |