Détention brevets de la classe E21C 37/16

Brevets de cette classe: 50

Historique des publications depuis 10 ans

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Propriétaires principaux

Proprétaire
Total
Cette classe
Arcbyt, Inc.
25
4
Trans Astronautica Corporation
26
4
Foro Energy, Inc.
104
3
Sandvik Mining and Construction Oy
703
3
Schlumberger Technology Corporation
9690
2
Hydro-Quebec
637
2
Sandvik Mining and Construction Lyon SAS
10
2
Aramco Overseas Company B.V.
12
2
Geoprober Ltd.
7
2
Off-World, Inc.
17
2
Schlumberger Canada Limited
6913
1
Schlumberger Technology B.v.
4951
1
Schlumberger Holdings Limited
2947
1
Halliburton Energy Services, Inc.
20165
1
Accenture Global Solutions Limited
2132
1
China University of Mining and Technology, Beijing
66
1
Dalian University of Technology
1387
1
Gas Technology Institute
374
1
Her Majesty The Queen in Right of Canada AS represented by The Minister of Natural Resources Canada
89
1
Her Majesty the Queen in the right of Canada, as represented by the Minister of Natural Resources
1
1
Autres propriétaires 14