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