- All sections
- G - Physics
- G09B - Educational or demonstration appliancesappliances for teaching, or communicating with, the blind, deaf or mutemodelsplanetariaglobesmapsdiagrams
- G09B 23/40 - Models for scientific, medical, or mathematical purposes, e.g. full-sized device for demonstration purposes for geology
Patent holdings for IPC class G09B 23/40
Total number of patents in this class: 87
10-year publication summary
|
2
|
2
|
1
|
4
|
8
|
12
|
10
|
7
|
8
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 13224 |
9 |
| Schlumberger Technology Corporation | 10780 |
8 |
| Schlumberger Canada Limited | 7332 |
6 |
| Shandong University | 1048 |
6 |
| Zhejiang University | 3162 |
5 |
| Services Petroliers Schlumberger | 5803 |
4 |
| Schlumberger Technology B.v. | 5176 |
3 |
| Aramco Services Company | 3987 |
2 |
| Geoquest Systems B.V. | 754 |
2 |
| Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences | 233 |
2 |
| Shandong University of Science and Technology | 524 |
2 |
| National Disaster Management Research Institute | 17 |
2 |
| Idea Vault Holdings Inc | 41 |
2 |
| Ceraphi Energy Limited | 5 |
2 |
| Schlumberger Holdings Limited | 2817 |
1 |
| Chevron U.S.A. Inc. | 3967 |
1 |
| Beijing Normal University | 95 |
1 |
| China Petroleum & Chemical Corporation | 1901 |
1 |
| China University of Petroleum (Beijing) | 284 |
1 |
| Chongqing University | 275 |
1 |
| Other owners | 26 |