- All sections
- E - Fixed constructions
- E04F - Finishing work on buildings, e.g. stairs, floors
- E04F 11/00 - Stairways, ramps, or like structuresBalustradesHandrails
Patent holdings for IPC class E04F 11/00
Total number of patents in this class: 193
10-year publication summary
|
26
|
20
|
22
|
22
|
15
|
18
|
14
|
8
|
11
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| HomeCare Products, Inc. | 60 |
10 |
| Lift-U, Division of Hogan Mfg., Inc. | 65 |
9 |
| Myd"l" | 9 |
8 |
| Toray Industries, Inc. | 7111 |
5 |
| Sumitomo Rubber Industries, Ltd. | 4727 |
5 |
| Emeh, Inc. | 87 |
5 |
| Latham Pool Products, Inc. | 190 |
5 |
| Enable Access (Holdings) Limited | 22 |
4 |
| Georgia Tech Research Corporation | 2950 |
3 |
| Emory University | 1723 |
3 |
| Imperial Pools, Inc. | 38 |
3 |
| Lowe's Companies, Inc. | 155 |
3 |
| Quality Mat Company | 43 |
3 |
| Rose ACRE Farms, Inc. | 45 |
3 |
| United Kingdom Atomic Energy Authority | 46 |
3 |
| Heated Ramps, LLC | 3 |
3 |
| Lifeway Ease, LLC | 3 |
3 |
| Anenda Systems Inc. | 23 |
2 |
| Australian Ramp Systems Pty Limited | 2 |
2 |
| Dant Clayton Corporation | 4 |
2 |
| Other owners | 109 |