- All sections
- E - Fixed constructions
- E04G - Scaffolding; forms; shuttering; building implements or aids, or their use; handling building materials on the site; repairing, breaking-up or other work on existing buildings
- E04G 21/04 - Devices for both conveying and distributing
Patent holdings for IPC class E04G 21/04
Total number of patents in this class: 746
10-year publication summary
47
|
41
|
50
|
48
|
56
|
70
|
65
|
91
|
47
|
31
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Putzmeister Engineering GmbH | 309 |
147 |
Schwing GmbH | 107 |
54 |
Sany Heavy Industry Co., Ltd. | 243 |
46 |
Hunan Sany Intelligent Control Equipment Co., Ltd. | 341 |
45 |
Zoomlion Heavy Industry Science and Technology Co., Ltd. | 344 |
44 |
Sany Automobile Manufacturing Co., Ltd. | 117 |
31 |
Hunan Zoomlion Special Vehicle Co., Ltd. | 361 |
25 |
Changsha Zoomlion Heavy Industry Science and Technology Development Co., Ltd. | 195 |
14 |
Danfoss A/S | 1259 |
14 |
CIFA SpA | 57 |
12 |
Sika Technology AG | 2650 |
10 |
Putzmeister Concrete Pumps GmbH | 20 |
9 |
Caterpillar Inc. | 8877 |
7 |
Schwing GmbH | 12 |
7 |
Soletanche Freyssinet | 480 |
7 |
GE Infrastructure Technology, LLC | 5873 |
7 |
XtreeE | 12 |
7 |
Icon Technology, Inc. | 74 |
7 |
Liebherr-Werk Biberach GmbH | 193 |
6 |
PERI GmbH | 191 |
6 |
Other owners | 241 |