- All sections
- E - Fixed constructions
- E02D - Foundationsexcavationsembankmentsunderground or underwater structures
- E02D 31/04 - Watertight packings for use under hydraulic pressure
Patent holdings for IPC class E02D 31/04
Total number of patents in this class: 20
10-year publication summary
|
4
|
1
|
1
|
1
|
0
|
3
|
0
|
0
|
2
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Relborgn Pty Ltd; and Triomviri Pty Ltd Trading AS The Grobler Partnersh IP | 5 |
4 |
| GCP Applied Technologies Inc. | 469 |
2 |
| AMCOL International Corporation | 260 |
1 |
| Belbridge BVBA | 3 |
1 |
| Poweltec | 15 |
1 |
| Relborgn Pty Ltd | 15 |
1 |
| Saudi Arabian Oil Company | 13857 |
1 |
| Sika Technology AG | 2931 |
1 |
| Tremco Incorporated | 21 |
1 |
| Triomviri Pty Ltd Trading AS The Grobler Partnership | 14 |
1 |
| Trisoplast International B.V. | 9 |
1 |
| W.R. Meadows, Inc. | 89 |
1 |
| Shanghai Investigation, Design & Research Institute Co., Ltd. | 43 |
1 |
| China Railway No.5 Engineering Group Co., Ltd. | 17 |
1 |
| Lanzhou Engineering & Research Institute of Nonferrous Metallurgy Co., Ltd. | 1 |
1 |
| BeSTDR Infrastructure Hospital (Pingyu) | 2 |
1 |
| Other owners | 0 |