- 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 23/12 - Devices or arrangements for working the finished surface; Devices 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: 507
10-year publication summary
|
33
|
55
|
60
|
52
|
71
|
42
|
52
|
36
|
42
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Wirtgen GmbH | 507 |
158 |
| Caterpillar Paving Products Inc. | 628 |
119 |
| BOMAG GmbH | 405 |
41 |
| Wirtgen America, Inc. | 36 |
18 |
| Roadtec, Inc. | 89 |
12 |
| Aquajet Systems Holding AB | 14 |
8 |
| Hamm AG | 160 |
7 |
| Conjet AB | 22 |
6 |
| Caterpillar Inc. | 8877 |
5 |
| Asphalt Zipper, Inc. | 19 |
5 |
| Green Arm Co., Ltd. | 12 |
4 |
| Mac & Mac Hydrodemolition Inc. | 48 |
4 |
| The Sollami Company | 51 |
4 |
| Vermeer Manufacturing Company | 615 |
4 |
| Waterblasting, LLC | 36 |
4 |
| Kennametal Inc. | 1380 |
3 |
| Simex Engineering S.r.l. | 19 |
3 |
| Apergy BMCS Acquisition Corporation | 8 |
3 |
| Schlumberger Technology Corporation | 9690 |
2 |
| Schlumberger Canada Limited | 6913 |
2 |
| Other owners | 95 |