Patent holdings for IPC class E04H 5/02

Total number of patents in this class: 331

10-year publication summary

21
39
27
27
27
27
34
23
20
12
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
JNC Corporation
1561
18
Bripco BVBA
39
11
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
3985
11
Crown Equipment Corporation
926
7
Lonza Ltd.
609
7
Mitsubishi Hitachi Power Systems, Ltd.
993
6
Vapor io Inc.
64
6
Terrapower, LLC
330
5
Shell Internationale Research Maatschappij B.V.
3548
4
Mitsubishi Heavy Industries, Ltd.
8752
4
Peugeot Citroen Automobiles SA
1770
4
Schweitzer Engineering Laboratories, Inc.
915
4
TechnoGuard Inc.
12
4
Mitsubishi Power, Ltd.
1772
4
Cummins Power Generation IP, Inc.
297
3
Fluor Technologies Corporation
377
3
G-con Manufacturing, Inc.
27
3
JGC Corporation
43
3
Switch, Ltd.
395
3
Wartsila Finland Oy
741
3
Other owners 218