Détention brevets de la classe E21F 5/00

Brevets de cette classe: 69

Historique des publications depuis 10 ans

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

Propriétaires principaux

Proprétaire
Total
Cette classe
China University of Mining and Technology
1292
12
Shandong University of Science and Technology
540
8
Komatsu Ltd.
4658
2
American Refining Group, Inc.
28
2
Cargill, Incorporated
2957
2
Ecolab USA Inc.
5745
2
Sandvik Intellectual Property AB
1412
2
Sandvik Mining and Construction Oy
875
2
Rival Downhole Tools LC
50
2
Swisscolor s.r.o.
2
2
General Electric Company
13816
1
Tsinghua University
6113
1
The Arizona Board of Regents on Behalf of the University of Arizona
2261
1
Central South University
474
1
CFT GmbH Compact Filter Technic
11
1
Dust Control Technology, Inc.
14
1
Dust Solutions, Inc.
3
1
Frank T. Porta
1
1
GelTech Solutions, Inc.
9
1
Micon
12
1
Autres propriétaires 23