- 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 23/20 - Flanged joints characterised by the sealing means the sealing means being rings made exclusively of metal
Patent holdings for IPC class F16L 23/20
Total number of patents in this class: 118
10-year publication summary
|
11
|
20
|
11
|
10
|
9
|
14
|
11
|
9
|
5
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
5 |
| ElringKlinger AG | 487 |
5 |
| Fujikin Incorporated | 671 |
4 |
| kuk IL Inntot Co., Ltd. | 13 |
4 |
| Otechos AS | 10 |
4 |
| FMC Technologies, Inc. | 603 |
3 |
| NORMA Germany GmbH | 219 |
3 |
| The Schebler Co. | 15 |
3 |
| Evenort Ltd | 3 |
3 |
| LGC US Asset Holdings, LLC | 49 |
3 |
| ASML Netherlands B.V. | 6816 |
2 |
| Cameron International Corporation | 1305 |
2 |
| Etablissements Caillau | 40 |
2 |
| Marine Direct Consultants Ltd. | 2 |
2 |
| Micro Motion, Inc. | 1011 |
2 |
| National Oilwell Varco, L.P. | 1604 |
2 |
| Rohr, Inc. | 653 |
2 |
| Saipem S.p.A. | 513 |
2 |
| Saudi Arabian Oil Company | 11322 |
2 |
| Sub-Drill Supply Limited | 12 |
2 |
| Other owners | 61 |