Détention brevets de la classe G01V 5/14

Brevets de cette classe: 91

Historique des publications depuis 10 ans

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3
12
4
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3
3
1
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Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
21144
13
Schlumberger Canada Limited
7524
9
Baker Hughes Incorporated
5088
9
Schlumberger Technology B.v.
5259
8
Services Petroliers Schlumberger
5945
8
Schlumberger Technology Corporation
11349
7
Schlumberger Holdings Limited
2753
5
GE Energy Oilfield Technology, Inc.
19
5
Prad Research and Development Limited
2683
5
General Electric Company
13804
2
China Petroleum & Chemical Corporation
2014
2
Saudi Arabian Oil Company
13904
2
Starfire Industries, LLC
41
2
Baker Hughes Oilfield Operations, LLC
2424
2
Smith International, Inc.
701
1
Australian Nuclear Science & Technology Organisation
6
1
CARBO Ceramics Inc.
228
1
Petroleo Brasileiro S.A. - Petrobras
922
1
Scientific Drilling International, Inc.
169
1
Sinopec Tech Houston, LLC.
22
1
Autres propriétaires 6