Patent holdings for IPC class E04G 21/22

Total number of patents in this class: 108

10-year publication summary

3
12
12
18
11
8
15
14
9
2
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Fastbrick IP Pty Ltd
121
53
Guangdong Bright Dream Robotics Co., Ltd.
161
8
Oldcastle Building Products Canada, Inc.
171
4
Intrinsic Innovation LLC
393
3
Salixinvent B.V.
7
3
Groupe Refraco Inc.
17
2
X Development LLC
1391
2
Construction Automation Ltd
2
2
China First Metallurgical Group Co., Ltd.
6
2
Commissariat à l'énergie atomique et aux energies alternatives
11127
1
The Chinese University of Hong Kong
761
1
Construction Robotics, LLC
10
1
General Shale Brick, Inc.
59
1
Keene Building Products Co., Inc.
31
1
Level 5 Tools, LLC
26
1
Max Co., Ltd.
864
1
Nwg Tools Oy
1
1
Piazza Stone, LLC
7
1
PTX Group Inc.
8
1
Schluter Systems (Canada) Inc.
24
1
Other owners 18