- All sections
- B - Performing operations; transporting
- B28B - Shaping clay or other ceramic compositions; shaping slag; shaping mixtures containing cementitious material, e.g. plaster
- B28B 21/02 - Methods or machines specially adapted for the production of tubular articles by casting into moulds
Patent holdings for IPC class B28B 21/02
Total number of patents in this class: 15
10-year publication summary
|
2
|
1
|
0
|
1
|
1
|
2
|
0
|
1
|
0
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Wobben Properties GmbH | 1207 |
3 |
| Hubbell Incorporated | 3052 |
2 |
| Wobben, Aloys | 29 |
2 |
| Agency for Science, Technology and Research | 3512 |
1 |
| Hawkeye Concrete Products Co. | 6 |
1 |
| Ness Inventions, Inc. | 33 |
1 |
| North American Refractories Company | 20 |
1 |
| PSI Global Ltd. | 18 |
1 |
| SSW Holding Company, Inc. | 11 |
1 |
| TPI Technology, Inc. | 11 |
1 |
| Vertech Hume Pty Ltd | 3 |
1 |
| Other owners | 0 |