Détention brevets de la classe G01N 33/26

Brevets de cette classe: 217

Historique des publications depuis 10 ans

9
9
14
9
5
7
5
5
8
1
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Propriétaires principaux

Proprétaire
Total
Cette classe
Schlumberger Technology Corporation
11798
8
Schlumberger Canada Limited
7606
6
Halliburton Energy Services, Inc.
21320
6
Saudi Arabian Oil Company
14207
6
Services Petroliers Schlumberger
6024
6
Schlumberger Technology B.v.
5298
5
GM Global Technology Operations LLC
16106
4
Chevron U.S.A. Inc.
4134
4
The Lubrizol Corporation
1249
4
Qualitrol Company, LLC
54
4
Quest Diagnostics Investments Incorporated
393
4
3m Innovative Properties Company
17488
3
Afton Chemical Corporation
492
3
Cidra Corporate Services, Inc.
199
3
SPECTRO Scientific, Inc.
42
3
Transportation IP Holdings, LLC
990
3
Schlumberger Holdings Limited
2702
2
Baker Hughes Incorporated
4940
2
ExxonMobil Research And Engineering Company
2425
2
Aktiebolaget SKF
3126
2
Autres propriétaires 137