- All sections
- E - Fixed constructions
- E01C - Construction of, or surfaces for, roads, sports grounds, or the like; machines 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: 160
10-year publication summary
|
18
|
18
|
17
|
12
|
15
|
16
|
11
|
21
|
10
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Wirtgen GmbH | 507 |
25 |
| Caterpillar Paving Products Inc. | 628 |
22 |
| Geopier Foundation Company, Inc. | 149 |
6 |
| Hamm AG | 160 |
6 |
| BOMAG GmbH | 405 |
5 |
| Midwest Industrial Supply, Inc. | 146 |
5 |
| Wirtgen America, Inc. | 36 |
5 |
| Black & Decker, Inc. | 2402 |
4 |
| Team Laboratory Chemical, LLC | 4 |
4 |
| Ergon Asphalt & Emulsions, Inc. | 108 |
3 |
| Institute of Geology and Geophysics, Chinese Academy of Sciences | 276 |
3 |
| MOBA Mobile Automation AG | 63 |
3 |
| Betolar Oy | 18 |
3 |
| American Refining Group, Inc. | 28 |
2 |
| Henry Company, LLC | 206 |
2 |
| Joseph vogele AG | 304 |
2 |
| Volvo Construction Equipment AB | 1172 |
2 |
| Rockwool A/S | 753 |
2 |
| Built Robotics Inc. | 83 |
2 |
| BASF SE | 19740 |
1 |
| Other owners | 53 |