- All sections
- E - Fixed constructions
- E04H - Buildings or like structures for particular purposesswimming or splash baths or poolsmastsfencingtents or canopies, in general
- E04H 12/34 - Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
Patent holdings for IPC class E04H 12/34
Total number of patents in this class: 809
10-year publication summary
|
90
|
102
|
79
|
64
|
72
|
68
|
68
|
57
|
55
|
30
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Vestas Wind Systems A/S | 3684 |
39 |
| Nabors Drilling Technologies USA, Inc. | 561 |
32 |
| Nordex Energy Spain, S.A.U. | 124 |
28 |
| Wobben Properties GmbH | 1217 |
26 |
| Siemens Gamesa Renewable Energy A/S | 1892 |
22 |
| GE Infrastructure Technology, LLC | 6234 |
15 |
| National Oilwell Varco, L.P. | 1683 |
14 |
| Tower Solutions, LLC | 22 |
10 |
| General Electric Company | 13806 |
9 |
| Ampjack Industries Ltd. | 15 |
9 |
| Wind Tower Technologies, LLC | 13 |
8 |
| Nekkar ASA | 15 |
8 |
| Schlumberger Technology Corporation | 10802 |
7 |
| Tindall Corporation | 50 |
7 |
| The Will-Burt Company | 100 |
7 |
| Nabrawind Technologies SL | 44 |
7 |
| Beijing GoldWind Science & Creation Windpower Equipment Co., Ltd. | 367 |
6 |
| Esteyco S.A.P. | 33 |
6 |
| Holcim Technology Ltd. | 997 |
6 |
| Soletanche Freyssinet | 481 |
6 |
| Other owners | 537 |