- All sections
- E - Fixed constructions
- E04H - Buildings or like structures for particular purposes; swimming or splash baths or pools; masts; fencing; tents or canopies, in general
- E04H 9/02 - Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
Patent holdings for IPC class E04H 9/02
Total number of patents in this class: 1117
10-year publication summary
|
113
|
121
|
135
|
138
|
133
|
144
|
119
|
92
|
79
|
29
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Oiles Corporation | 515 |
32 |
| Simpson Strong-Tie Company, Inc. | 583 |
29 |
| Qingdao University of Technology | 555 |
21 |
| Maurer Engineering GmbH | 42 |
15 |
| Nippon Steel Corporation | 5649 |
14 |
| Pontificia Universidad Catolica de Chile | 268 |
13 |
| Cetres Holdings, LLC | 98 |
12 |
| Dalian University of Technology | 1387 |
12 |
| Industry-Academic Cooperation Foundation, Chosun University | 274 |
12 |
| Nippon Steel Engineering Co., Ltd. | 218 |
11 |
| Nippon Steel & Sumikin Engineering Co., Ltd. | 186 |
10 |
| THK Co., Ltd. | 1206 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
9 |
| JFE Steel Corporation | 6067 |
9 |
| Durafuse Frames, LLC | 18 |
9 |
| Intel Corporation | 45621 |
8 |
| Bridgestone Corporation | 7067 |
8 |
| The Governing Council of The University of Toronto, | 1361 |
8 |
| Mitsubishi Electric Corporation | 43934 |
7 |
| Corebrace, LLC | 8 |
7 |
| Other owners | 861 |