- All sections
- B - Performing operations; transporting
- B28B - Shaping clay or other ceramic compositions; shaping slag; shaping mixtures containing cementitious material, e.g. plaster
- B28B 21/00 - Methods or machines specially adapted for the production of tubular articles
Patent holdings for IPC class B28B 21/00
Total number of patents in this class: 39
10-year publication summary
|
1
|
2
|
0
|
2
|
0
|
3
|
0
|
0
|
1
|
0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GPCP IP Holdings LLC | 1733 |
5 |
| BASF SE | 19740 |
2 |
| Corning Incorporated | 9932 |
2 |
| Covestro Deutschland AG | 2429 |
2 |
| Covestro LLC | 577 |
2 |
| Nanjing Juli Intelligent Manufacturing Technology Institute Co., Ltd. | 16 |
2 |
| NGK Insulators, Ltd. | 4589 |
1 |
| Kao Corporation | 4843 |
1 |
| Henkel AG & Co. KGaA | 10129 |
1 |
| Boe Technology Group Co., Ltd. | 35384 |
1 |
| Composite Plastic, Inc. | 1 |
1 |
| Dyson Technology Limited | 3124 |
1 |
| Korea Atomic Energy Research Institute | 418 |
1 |
| Korea Hydro & Nuclear Power Co., Ltd. | 383 |
1 |
| MuCell Extrusion, LLC | 35 |
1 |
| Nano Precision Medical, Inc. | 34 |
1 |
| Nova-Tech Engineering, Inc. | 12 |
1 |
| Pactiv Packaging Inc. | 36 |
1 |
| PERI GmbH | 191 |
1 |
| Pittsburgh Corning Corporation | 7 |
1 |
| Other owners | 10 |