- 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 19/23 - Rollers thereforSuch rollers usable also for compacting soil
Patent holdings for IPC class E01C 19/23
Total number of patents in this class: 163
10-year publication summary
|
22
|
18
|
16
|
19
|
7
|
12
|
15
|
14
|
7
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamm AG | 165 |
32 |
| Caterpillar Paving Products Inc. | 662 |
31 |
| BOMAG GmbH | 400 |
16 |
| Lura Enterprises, Inc. | 11 |
8 |
| Volvo Construction Equipment AB | 1183 |
7 |
| Caterpillar Inc. | 9417 |
6 |
| Somero Enterprises, Inc. | 83 |
5 |
| Curb Roller LLC | 17 |
3 |
| Ingios Geotechnics, Inc. | 14 |
3 |
| Seamless Technologies, LLC | 28 |
3 |
| AG Shield Ltd | 14 |
3 |
| Momentus Golf, Inc. | 7 |
3 |
| Blacklidge Emulsions, Inc. | 11 |
2 |
| Hitachi Construction Machinery Co., Ltd. | 2617 |
1 |
| Tsinghua University | 5813 |
1 |
| The Board of Regents of the University of Oklahoma | 603 |
1 |
| The Charles Machine Works, Inc. | 410 |
1 |
| Collaborative Aggregates LLC | 11 |
1 |
| Equipment Component Holdings Pty Ltd | 2 |
1 |
| Fermi Research Alliance, LLC | 16 |
1 |
| Other owners | 34 |