- All sections
- E - Fixed constructions
- E04B - General building constructions; walls, e.g. partitions; roofs; floors; ceilings; insulation or other protection of buildings
- E04B 1/98 - Protection against other undesired influences or dangers against mechanical destruction, e.g. by air-raids
Patent holdings for IPC class E04B 1/98
Total number of patents in this class: 776
10-year publication summary
|
80
|
85
|
121
|
103
|
83
|
117
|
85
|
38
|
37
|
15
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qingdao University of Technology | 555 |
26 |
| Dalian University of Technology | 1387 |
14 |
| Simpson Strong-Tie Company, Inc. | 583 |
12 |
| Southeast University | 1148 |
11 |
| Worksafe Technologies | 19 |
11 |
| Industry-Academic Cooperation Foundation, Chosun University | 274 |
10 |
| Nippon Steel Corporation | 5649 |
8 |
| State Farm Mutual Automobile Insurance Company | 2560 |
8 |
| Hohmann & Barnard, Incorporated | 158 |
7 |
| Pliteq Inc. | 71 |
7 |
| South China University of Technology | 1581 |
7 |
| Cetres Holdings, LLC | 98 |
6 |
| Emeh, Inc. | 91 |
6 |
| Sika Technology AG | 2650 |
6 |
| Skidmore, Owings & Merrill LLP | 39 |
6 |
| ARX PAX Labs, Inc. | 21 |
5 |
| The Governing Council of The University of Toronto, | 1361 |
5 |
| Ridg-U-Rak, Inc. | 11 |
5 |
| Soletanche Freyssinet | 480 |
5 |
| Sr Systems, LLC | 37 |
5 |
| Other owners | 606 |