- All sections
- E - Fixed constructions
- E01F - Additional work, such as equipping roads or the construction of platforms, helicopter landing stages, signs, snow fences, or the like
- E01F 13/04 - Arrangements for obstructing or restricting traffic, e.g. gates, barricades movable to allow or prevent passage
Patent holdings for IPC class E01F 13/04
Total number of patents in this class: 222
10-year publication summary
|
16
|
23
|
29
|
25
|
30
|
21
|
23
|
29
|
21
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rite-Hite Holding Corporation | 649 |
12 |
| The Chamberlain Group, Inc. | 159 |
7 |
| Neusch Innovations, LP | 42 |
7 |
| Heald Technologies Ltd. | 11 |
6 |
| ATG Access Ltd. | 20 |
5 |
| Engineered Arresting Systems Corporation | 46 |
4 |
| Barrier1 Systems, Inc. | 8 |
4 |
| Barrier1 Systems, LLC | 14 |
4 |
| Toyota Motor Corporation | 28582 |
3 |
| Saudi Arabian Oil Company | 11322 |
3 |
| SKD Hi-Tec Co., Ltd. | 13 |
3 |
| Mobile Gate Security A/S | 4 |
3 |
| Energy Absorption Systems, Inc. | 53 |
2 |
| Ideal Warehouse Innovations Inc. | 41 |
2 |
| Schram Management Company | 11 |
2 |
| Shanghai Huaming Intelligent Terminal Equipment Co., Ltd | 4 |
2 |
| Zkteco Co., Ltd. | 42 |
2 |
| Absolute Museum & Gallery Products Ltd | 14 |
2 |
| C.D.L. Electric Company, Inc. | 31 |
2 |
| DoorDash, Inc. | 385 |
2 |
| Other owners | 145 |