- 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 23/12 - Devices or arrangements for working the finished surfaceDevices for repairing the surface of damaged paving for taking-up, tearing-up, or breaking-up paving
Patent holdings for IPC class E01C 23/12
Total number of patents in this class: 520
10-year publication summary
|
55
|
60
|
52
|
71
|
43
|
53
|
41
|
44
|
19
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Wirtgen GmbH | 501 |
162 |
| Caterpillar Paving Products Inc. | 668 |
129 |
| BOMAG GmbH | 401 |
44 |
| Wirtgen America, Inc. | 32 |
17 |
| Roadtec, Inc. | 90 |
13 |
| Aquajet Systems Holding AB | 12 |
7 |
| Hamm AG | 165 |
7 |
| Conjet AB | 22 |
6 |
| Caterpillar Inc. | 9509 |
5 |
| Asphalt Zipper, Inc. | 19 |
4 |
| Simex Engineering S.r.l. | 21 |
4 |
| The Sollami Company | 52 |
4 |
| Vermeer Manufacturing Company | 634 |
4 |
| Schlumberger Technology Corporation | 10641 |
3 |
| Kennametal Inc. | 1387 |
3 |
| Green Arm Co., Ltd. | 11 |
3 |
| Mac & Mac Hydrodemolition Inc. | 43 |
3 |
| Waterblasting, LLC | 16 |
3 |
| Apergy BMCS Acquisition Corporation | 7 |
3 |
| Suzhou Wuyuansu Machinery Manufacturing Co., Ltd | 7 |
3 |
| Other owners | 93 |