- 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: 84
10-year publication summary
|
2
|
1
|
4
|
9
|
12
|
10
|
9
|
9
|
3
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schlumberger Technology Corporation | 11767 |
8 |
| Saudi Arabian Oil Company | 14161 |
8 |
| Shandong University | 1150 |
7 |
| Schlumberger Canada Limited | 7605 |
5 |
| Zhejiang University | 3436 |
5 |
| Services Petroliers Schlumberger | 6023 |
3 |
| Ceraphi Energy Limited | 6 |
3 |
| Schlumberger Technology B.v. | 5299 |
2 |
| Aramco Services Company | 4182 |
2 |
| Geoquest Systems B.V. | 869 |
2 |
| Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences | 246 |
2 |
| Shandong University of Science and Technology | 545 |
2 |
| National Disaster Management Research Institute | 22 |
2 |
| Idea Vault Holdings Inc | 53 |
2 |
| Chevron U.S.A. Inc. | 4134 |
1 |
| Beijing Normal University | 107 |
1 |
| China Petroleum & Chemical Corporation | 2142 |
1 |
| China University of Petroleum (Beijing) | 302 |
1 |
| Chongqing University | 304 |
1 |
| Institute of Geology and Geophysics, Chinese Academy of Sciences | 353 |
1 |
| Other owners | 25 |