- All sections
- B - Performing operations; transporting
- B28B - Shaping clay or other ceramic compositions; shaping slag; shaping 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: 250
10-year publication summary
|
22
|
31
|
20
|
28
|
25
|
20
|
32
|
12
|
15
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10125 |
94 |
| NGK Insulators, Ltd. | 4792 |
44 |
| Hitachi Metals, Ltd. | 2021 |
13 |
| Denso Corporation | 23769 |
13 |
| Ibiden Co., Ltd. | 1736 |
12 |
| Putzmeister Engineering GmbH | 337 |
6 |
| Sumitomo Chemical Company, Limited | 8988 |
5 |
| Nanostone Water GmbH | 13 |
3 |
| Schlumberger Technology Corporation | 10263 |
2 |
| Advanced Technology Emission Solutions Inc. | 31 |
2 |
| E. Khashoggi Industries, LLC | 5 |
2 |
| Samsung Engineering Co., Ltd. | 41 |
2 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6135 |
2 |
| Astroport Space Technologies, Inc. | 3 |
2 |
| Proterial, Ltd. | 765 |
2 |
| Schlumberger Canada Limited | 7154 |
1 |
| Schlumberger Technology B.v. | 5075 |
1 |
| The Boeing Company | 19911 |
1 |
| Tokyo Electron Limited | 12115 |
1 |
| Shin-Etsu Chemical Co., Ltd. | 5446 |
1 |
| Other owners | 41 |