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
Trans Astronautica Corporation
33
4
Foro Energy, Inc.
106
3
Northeastern University
524
3
Sandvik Mining and Construction Oy
794
3
EarthGrid PBC
26
3
Schlumberger Technology Corporation
10317
2
Sandvik Mining and Construction Lyon SAS
10
2
Aramco Overseas Company B.V.
19
2
Geoprober Ltd.
7
2
Off-World, Inc.
17
2
Capella Partners XI LLC
10
2
Halliburton Energy Services, Inc.
20489
1
Accenture Global Solutions Limited
2291
1
China University of Mining and Technology, Beijing
80
1
Dalian University of Technology
1466
1
Gas Technology Institute
358
1
Her Majesty The Queen in Right of Canada AS represented by The Minister of Natural Resources Canada
86
1
Herrenknecht AG
196
1
Hydro-Quebec
647
1
Imperial Oil Resources Limited
181
1
Autres propriétaires 13