- All sections
- E - Fixed constructions
- E02D - Foundationsexcavationsembankmentsunderground or underwater structures
- E02D 27/44 - Foundations for machines, engines, or ordnance
Patent holdings for IPC class E02D 27/44
Total number of patents in this class: 66
10-year publication summary
|
8
|
2
|
13
|
7
|
4
|
5
|
6
|
5
|
3
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| DICA Marketing Company, DBA DICA | 31 |
4 |
| Weatherford Technology Holdings, LLC | 2015 |
3 |
| Greenfield Products LLC | 9 |
3 |
| Keba AG | 98 |
3 |
| BBM Railway Equipment, LLC | 18 |
3 |
| Siemens AG | 24525 |
2 |
| Siemens Energy, Inc. | 1691 |
2 |
| Huaneng Clean Energy Research Institute | 425 |
2 |
| Keystone Engineering Inc. | 8 |
2 |
| Mitsubishi Heavy Industries Compressor Corporation | 629 |
2 |
| Suehiro-System Co., Ltd. | 7 |
2 |
| Tetra Tech, Inc. | 111 |
2 |
| Raptor Tech, Inc. | 11 |
2 |
| Robert Bosch GmbH | 42614 |
1 |
| Mitsubishi Electric Corporation | 45946 |
1 |
| Alstom Technology Ltd | 1109 |
1 |
| BaseTek, LLC | 1 |
1 |
| Cenovus Energy Inc. | 420 |
1 |
| General Electric Technology GmbH | 1371 |
1 |
| ISC Co., Ltd. | 130 |
1 |
| Other owners | 27 |