- All sections
- E - Fixed constructions
- E01C - Construction of, or surfaces for, roads, sports grounds, or the likemachines or auxiliary tools for construction or repair
- E01C 21/00 - Apparatus or processes for surface stabilisation for road building or like purposes, e.g. mixing borrowed aggregate with binder
Patent holdings for IPC class E01C 21/00
Total number of patents in this class: 167
10-year publication summary
|
18
|
15
|
11
|
15
|
15
|
12
|
22
|
11
|
7
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Paving Products Inc. | 674 |
23 |
| Wirtgen GmbH | 498 |
23 |
| Hamm AG | 167 |
7 |
| BOMAG GmbH | 404 |
6 |
| Geopier Foundation Company, Inc. | 146 |
6 |
| Midwest Industrial Supply, Inc. | 146 |
5 |
| Black & Decker, Inc. | 2406 |
4 |
| Team Laboratory Chemical, LLC | 5 |
4 |
| Ergon Asphalt & Emulsions, Inc. | 117 |
3 |
| MOBA Mobile Automation AG | 66 |
3 |
| Wirtgen America, Inc. | 30 |
3 |
| Betolar Oy | 23 |
3 |
| NEC Corporation | 36129 |
2 |
| American Refining Group, Inc. | 28 |
2 |
| Henry Company, LLC | 231 |
2 |
| Husqvarna AB | 2930 |
2 |
| Institute of Geology and Geophysics, Chinese Academy of Sciences | 332 |
2 |
| Joseph vogele AG | 328 |
2 |
| Volvo Construction Equipment AB | 1201 |
2 |
| Rockwool A/S | 797 |
2 |
| Other owners | 61 |