- All sections
- E - Fixed constructions
- E02D - Foundationsexcavationsembankmentsunderground or underwater structures
- E02D 29/02 - Retaining or protecting walls
Patent holdings for IPC class E02D 29/02
Total number of patents in this class: 825
10-year publication summary
|
60
|
78
|
80
|
67
|
59
|
65
|
54
|
49
|
47
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Terre Armee Internationale | 43 |
34 |
| Keystone Retaining Wall Systems LLC | 203 |
31 |
| Hesco Bastion Limited | 62 |
18 |
| Earth Wall Products, LLC | 30 |
17 |
| Tensar International Corporation | 138 |
17 |
| Soletanche Freyssinet | 490 |
16 |
| Anchor Wall Systems, Inc. | 170 |
15 |
| Les Materiaux de Construction Oldcastle Canada Inc. | 25 |
14 |
| Pavestone, LLC | 78 |
14 |
| Contech Engineered Solutions LLC | 279 |
13 |
| T & B Structural Systems LLC | 14 |
11 |
| Oldcastle Building Products Canada, Inc. | 173 |
9 |
| RISI Stone Inc. | 49 |
9 |
| Officine Maccaferri S.p.A. | 109 |
8 |
| Propex Operating Company, LLC | 81 |
8 |
| Zhen's Corporation | 13 |
8 |
| AWT IP, LLC | 12 |
7 |
| Keystone Retaining Wall Systems, Inc. | 28 |
7 |
| Tricon Precast, Ltd., Tricon Management Corp., a Texas corporation | 17 |
7 |
| Levee Lock, LLC | 7 |
7 |
| Other owners | 555 |