Patent holdings for IPC class E04B 2/82

Total number of patents in this class: 461

10-year publication summary

49
28
40
41
37
33
28
20
20
5
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
DIRTT Environmental Solutions, Ltd.
306
34
Cemco, LLC
127
26
Hilti Aktiengesellschaft
3498
22
Won-Door Corporation
108
16
Knauf Gips KG
600
13
Krueger International, Inc.
371
12
Modernfold, Inc.
52
9
Allsteel Inc.
20
7
DIRTT Environmental Solutions Inc.
59
7
DORMA GmbH + Co. KG
128
7
Steelcase Inc.
1338
6
Lumon Invest Oy
53
5
Siniat International SAS
22
5
Specified Technologies Inc.
82
5
Etex Building Performance International SAS
76
5
Advanced Equipment Corporation
14
4
Teknion Limited
69
4
Solar Innovations LLC
37
4
Abatement Technologies, Inc.
42
3
Bobrick Washroom Equipment, Inc.
161
3
Other owners 264