- 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
|
62
|
74
|
90
|
95
|
80
|
72
|
77
|
64
|
51
|
35
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Terre Armee Internationale | 47 |
37 |
| Keystone Retaining Wall Systems LLC | 219 |
35 |
| Hesco Bastion Limited | 66 |
19 |
| Tensar International Corporation | 134 |
17 |
| Soletanche Freyssinet | 480 |
16 |
| Anchor Wall Systems, Inc. | 189 |
15 |
| Earth Wall Products, LLC | 27 |
15 |
| Les Materiaux de Construction Oldcastle Canada Inc. | 24 |
14 |
| Contech Engineered Solutions LLC | 278 |
13 |
| Pavestone, LLC | 70 |
13 |
| T & B Structural Systems LLC | 14 |
11 |
| RISI Stone Inc. | 49 |
9 |
| Officine Maccaferri S.p.A. | 104 |
8 |
| Oldcastle Building Products Canada, Inc. | 172 |
8 |
| Propex Operating Company, LLC | 83 |
8 |
| AWT IP, LLC | 12 |
7 |
| Keystone Retaining Wall Systems, Inc. | 29 |
7 |
| Tricon Precast, Ltd., Tricon Management Corp., a Texas corporation | 17 |
7 |
| Levee Lock, LLC | 7 |
7 |
| Hanforce. Co.,Ltd | 11 |
6 |
| Other owners | 553 |