- All sections
- B - Performing operationstransporting
- B28B - Shaping clay or other ceramic compositionsshaping slagshaping mixtures containing cementitious material, e.g. plaster
- B28B 3/26 - Extrusion dies
Patent holdings for IPC class B28B 3/26
Total number of patents in this class: 260
10-year publication summary
|
31
|
20
|
28
|
25
|
21
|
34
|
13
|
16
|
12
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10510 |
95 |
| NGK Insulators, Ltd. | 5239 |
41 |
| Denso Corporation | 25579 |
13 |
| Hitachi Metals, Ltd. | 1896 |
12 |
| Ibiden Co., Ltd. | 1667 |
11 |
| Sumitomo Chemical Company, Limited | 8968 |
5 |
| Putzmeister Engineering GmbH | 351 |
4 |
| Knauf Gips KG | 643 |
3 |
| Nanostone Water GmbH | 13 |
3 |
| Schlumberger Technology Corporation | 11820 |
2 |
| Advanced Technology Emission Solutions Inc. | 31 |
2 |
| E. Khashoggi Industries, LLC | 3 |
2 |
| Samsung Engineering Co., Ltd. | 36 |
2 |
| Technologies Avancees & Membranes Industrielles | 39 |
2 |
| Reliefed AB | 29 |
2 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6119 |
2 |
| Astroport Space Technologies, Inc. | 4 |
2 |
| Grand Advance Technologies Pte Ltd | 2 |
2 |
| INSTATIQ GmbH | 15 |
2 |
| Schlumberger Canada Limited | 7601 |
1 |
| Other owners | 52 |