- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16L - Pipes; joints or fittings for pipes; supports for pipes, cables or protective tubing; means for thermal insulation in general
- F16L 53/37 - Ohmic-resistance heating the heating current flowing directly through the pipe to be heated
Patent holdings for IPC class F16L 53/37
Total number of patents in this class: 70
10-year publication summary
|
4
|
3
|
8
|
13
|
4
|
10
|
8
|
12
|
5
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| National Oilwell Varco Denmark I/S | 135 |
8 |
| BASF SE | 19740 |
6 |
| Saipem S.A. | 223 |
5 |
| Siemens Energy AS | 162 |
5 |
| Aker Solutions AS | 226 |
4 |
| Gates Corporation | 1182 |
4 |
| Halliburton Energy Services, Inc. | 20165 |
3 |
| Acergy France SAS | 124 |
3 |
| Nexans | 588 |
3 |
| Linde GmbH | 1122 |
3 |
| Graco Minnesota Inc. | 1124 |
2 |
| Linde Aktiengesellschaft | 1600 |
2 |
| Saipem S.p.A. | 513 |
2 |
| LG Chem, Ltd. | 17205 |
1 |
| Airbus Operations GmbH | 3188 |
1 |
| Robert Bosch GmbH | 40953 |
1 |
| Dow Global Technologies LLC | 10147 |
1 |
| Edwards Japan Limited | 376 |
1 |
| Empig AS | 11 |
1 |
| Micropen Technologies Corporation | 13 |
1 |
| Other owners | 13 |