- All sections
- E - Fixed constructions
- E02D - Foundationsexcavationsembankmentsunderground or underwater structures
- E02D 3/11 - Improving or preserving soil or rock, e.g. preserving permafrost soil by thermal, electrical or electrochemical means
Patent holdings for IPC class E02D 3/11
Total number of patents in this class: 47
10-year publication summary
|
3
|
6
|
1
|
4
|
6
|
3
|
6
|
3
|
5
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Zhejiang University | 3068 |
3 |
| Jiangsu Xintai Geotechnical Technology Co., Ltd | 4 |
3 |
| Afitex International | 27 |
2 |
| Ecole Polytechnique Federale de Lausanne (epfl) | 1519 |
2 |
| Nantong University | 264 |
2 |
| Wuhan Hhzedi Electro Osmosis Science & Technology Co., Ltd. | 2 |
2 |
| Minnesota Street Works, LLC | 3 |
2 |
| GM Global Technology Operations LLC | 14816 |
1 |
| Empire Technology Development LLC | 1620 |
1 |
| University of South Florida | 1815 |
1 |
| American AccuTech Ltd. Co. | 1 |
1 |
| Bauer Spezialtiefbau GmbH | 112 |
1 |
| Canadian Four Ltd. | 2 |
1 |
| Chemical Grouting Co., Ltd. | 5 |
1 |
| Dryair Manufacturing Corp. | 18 |
1 |
| Geocorail | 11 |
1 |
| Geosyntec Consultants, Inc. | 35 |
1 |
| Good Earthkeeping Organization, Inc., DBA G.E.O. Inc. | 8 |
1 |
| Heatwork AS | 5 |
1 |
| Joint-Stock Company "transneft Siberia" | 19 |
1 |
| Other owners | 18 |