- All sections
- E - Fixed constructions
- E04H - Buildings or like structures for particular purposesswimming or splash baths or poolsmastsfencingtents 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: 1221
10-year publication summary
|
135
|
138
|
133
|
144
|
122
|
92
|
84
|
99
|
77
|
37
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Simpson Strong-Tie Company, Inc. | 745 |
31 |
| Oiles Corporation | 498 |
25 |
| Qingdao University of Technology | 641 |
20 |
| South China University of Technology | 1903 |
17 |
| Cetres Holdings, LLC | 119 |
16 |
| IHI Corporation | 3532 |
16 |
| Maurer Engineering GmbH | 59 |
14 |
| Dalian University of Technology | 1593 |
13 |
| Nippon Steel Corporation | 6843 |
13 |
| Nippon Steel Engineering Co., Ltd. | 181 |
13 |
| Pontificia Universidad Catolica de Chile | 314 |
13 |
| Industry-Academic Cooperation Foundation, Chosun University | 317 |
12 |
| Tongji University | 613 |
11 |
| Mitsubishi Heavy Industries, Ltd. | 9115 |
10 |
| Nippon Steel & Sumikin Engineering Co., Ltd. | 169 |
10 |
| Bridgestone Corporation | 7251 |
9 |
| Holmes Solutions Limited Partnership | 27 |
9 |
| JFE Steel Corporation | 7508 |
9 |
| National Applied Research Laboratories | 156 |
9 |
| Durafuse Frames, LLC | 17 |
9 |
| Other owners | 942 |