- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 13/00 - Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
Patent holdings for IPC class G01N 13/00
Total number of patents in this class: 510
10-year publication summary
31
|
47
|
47
|
42
|
52
|
36
|
37
|
47
|
31
|
10
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Saudi Arabian Oil Company | 11322 |
26 |
Schlumberger Technology Corporation | 9690 |
12 |
Halliburton Energy Services, Inc. | 20165 |
11 |
JFE Steel Corporation | 6067 |
8 |
Hoffmann-La Roche Inc. | 3060 |
7 |
Cambridge Enterprise Limited | 1096 |
7 |
F. Hoffmann-La Roche AG | 7958 |
6 |
Aramco Services Company | 3504 |
6 |
Bracco Imaging S.p.A. | 322 |
6 |
Schlumberger Canada Limited | 6913 |
5 |
Schlumberger Technology B.v. | 4951 |
5 |
The Regents of the University of California | 18943 |
5 |
Services Petroliers Schlumberger | 5426 |
5 |
Ventana Medical Systems, Inc. | 972 |
5 |
Wuhan University of Technology | 159 |
5 |
Schlumberger Holdings Limited | 2947 |
4 |
International Business Machines Corporation | 60644 |
4 |
Shimadzu Corporation | 5791 |
4 |
Erweka GmbH | 25 |
4 |
Prad Research and Development Limited | 2696 |
4 |
Other owners | 371 |