Détention brevets de la classe E01B 3/34

Brevets de cette classe: 22

Historique des publications depuis 10 ans

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Propriétaires principaux

Proprétaire
Total
Cette classe
RAIL.ONE GmbH
23
3
VAE GmbH
23
2
Voestalpine BWG GmbH & Co. KG
14
2
Overail S.r.l.
6
2
China Academy of Railway Sciences Corporation Limited
24
2
Beijing Tieke Shougang Track Technology Co. , Ltd
2
2
DB Netz AG
21
1
Kirchdorfer Fertigteilholding GmbH
40
1
Railway Engineering Research Institute of China Academy of Railway Sciences
7
1
Silvery Dragon Prestressed Materials Co., Ltd. Tianjin
5
1
Gutanna Innovative Concrete and Technologies, LLC
1
1
China Academy of Railway Sciences Railway Engineering Research Institute
11
1
Vitacon AG
1
1
China Academy of Railway Sciences Corporaton Limited Railway Engineering Research Institute
1
1
Inventio GmbH
1
1
Autres propriétaires 0