- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F17D - Pipe-line systemspipe-lines
- F17D 1/04 - Pipe-line systems for gases or vapours for distribution of gas
Patent holdings for IPC class F17D 1/04
Total number of patents in this class: 313
10-year publication summary
|
12
|
17
|
35
|
21
|
29
|
19
|
27
|
30
|
30
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GRTgaz | 65 |
19 |
| Air Products and Chemicals, Inc. | 1404 |
13 |
| Fujikin Incorporated | 693 |
8 |
| Saudi Arabian Oil Company | 12891 |
7 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3937 |
6 |
| Hyundai Heavy Industries Co., Ltd. | 275 |
5 |
| Itron, Inc. | 877 |
5 |
| H2 Clipper, Inc. | 29 |
5 |
| BHE Compression Services, LLC | 6 |
5 |
| Flexsteel USA, LLC | 161 |
5 |
| Hitachi, Ltd. | 15449 |
4 |
| Linde Aktiengesellschaft | 1518 |
4 |
| Mueller International, LLC | 716 |
4 |
| Magellan Scientific, LLC | 4 |
4 |
| General Electric Company | 13830 |
3 |
| Schlumberger Technology Corporation | 10641 |
3 |
| Halliburton Energy Services, Inc. | 20769 |
3 |
| Applied Materials, Inc. | 18433 |
3 |
| Tokyo Electron Limited | 12571 |
3 |
| 1304338 Alberta Ltd. | 87 |
3 |
| Other owners | 201 |