- 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 19/28 - Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
Patent holdings for IPC class E01C 19/28
Total number of patents in this class: 302
10-year publication summary
|
17
|
21
|
21
|
27
|
29
|
25
|
33
|
26
|
20
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Paving Products Inc. | 671 |
52 |
| Hamm AG | 167 |
48 |
| Volvo Construction Equipment AB | 1194 |
42 |
| BOMAG GmbH | 403 |
23 |
| Caterpillar Inc. | 9593 |
13 |
| Sakai Heavy Industries, Ltd. | 32 |
11 |
| Dynapac Compaction Equipment AB | 11 |
9 |
| Ammann Schweiz AG | 79 |
6 |
| Hitachi Construction Machinery Co., Ltd. | 2646 |
5 |
| Hunan Sany Intelligent Control Equipment Co., Ltd. | 345 |
5 |
| Sany Heavy Industry Co., Ltd. | 243 |
5 |
| Hunan Zoomlion Special Vehicle Co., Ltd. | 361 |
4 |
| Poclain Hydraulics Industrie | 243 |
4 |
| Zoomlion Heavy Industry Science and Technology Co., Ltd. | 377 |
4 |
| Ingios Geotechnics, Inc. | 14 |
3 |
| Milwaukee Electric Tool Corporation | 4428 |
3 |
| MOBA Mobile Automation AG | 65 |
3 |
| Vibco, Inc. | 10 |
3 |
| Wacker Construction Equipment AG | 8 |
3 |
| Wacker Neuson Produktion GmbH & Co. KG | 79 |
3 |
| Other owners | 53 |