Détention brevets de la classe E21F 5/00

Brevets de cette classe: 70

Historique des publications depuis 10 ans

5
3
7
5
8
7
6
2
1
3
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Propriétaires principaux

Proprétaire
Total
Cette classe
China University of Mining and Technology
1308
12
Shandong University of Science and Technology
545
8
Komatsu Ltd.
4703
2
American Refining Group, Inc.
28
2
Cargill, Incorporated
2963
2
Ecolab USA Inc.
5792
2
Sandvik Intellectual Property AB
1398
2
Sandvik Mining and Construction Oy
886
2
Rival Downhole Tools LC
49
2
Swisscolor s.r.o.
2
2
General Electric Company
13888
1
Tsinghua University
6212
1
The Arizona Board of Regents on Behalf of the University of Arizona
2292
1
Central South University
489
1
CFT GmbH Compact Filter Technic
11
1
Dust Control Technology, Inc.
13
1
Dust Solutions, Inc.
3
1
Frank T. Porta
1
1
GelTech Solutions, Inc.
9
1
Korea Railroad Research Institute
185
1
Autres propriétaires 24