- 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: 842
10-year publication summary
|
115
|
90
|
69
|
78
|
74
|
68
|
64
|
70
|
49
|
35
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Vestas Wind Systems A/S | 3834 |
38 |
| Nordex Energy Spain, S.A.U. | 187 |
34 |
| Nabors Drilling Technologies USA, Inc. | 577 |
32 |
| Wobben Properties GmbH | 1223 |
25 |
| Siemens Gamesa Renewable Energy A/S | 1980 |
22 |
| GE Infrastructure Technology, LLC | 6151 |
15 |
| National Oilwell Varco, L.P. | 1698 |
14 |
| Ampjack Industries Ltd. | 18 |
10 |
| Tower Solutions, LLC | 21 |
10 |
| General Electric Company | 14010 |
9 |
| Nekkar ASA | 16 |
8 |
| Schlumberger Technology Corporation | 11981 |
7 |
| Tindall Corporation | 52 |
7 |
| The Will-Burt Company | 102 |
7 |
| Wind Tower Technologies, LLC | 11 |
7 |
| Siemens Gamesa Renewable Energy Innovation & Technology, S.L. | 349 |
7 |
| Beijing GoldWind Science & Creation Windpower Equipment Co., Ltd. | 391 |
6 |
| Esteyco S.A.P. | 32 |
6 |
| Holcim Technology Ltd. | 491 |
6 |
| Soletanche Freyssinet | 490 |
6 |
| Other owners | 566 |