- 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: 243
10-year publication summary
16
|
22
|
31
|
20
|
28
|
24
|
20
|
32
|
11
|
4
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Corning Incorporated | 9932 |
94 |
NGK Insulators, Ltd. | 4589 |
42 |
Hitachi Metals, Ltd. | 2175 |
13 |
Denso Corporation | 23338 |
13 |
Ibiden Co., Ltd. | 1724 |
12 |
Sumitomo Chemical Company, Limited | 8808 |
5 |
Putzmeister Engineering GmbH | 309 |
5 |
Nanostone Water GmbH | 13 |
3 |
Schlumberger Technology Corporation | 9690 |
2 |
Advanced Technology Emission Solutions Inc. | 31 |
2 |
E. Khashoggi Industries, LLC | 5 |
2 |
Samsung Engineering Co., Ltd. | 45 |
2 |
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6132 |
2 |
Proterial, Ltd. | 638 |
2 |
Schlumberger Canada Limited | 6913 |
1 |
Schlumberger Technology B.v. | 4951 |
1 |
The Boeing Company | 19843 |
1 |
Robert Bosch GmbH | 40953 |
1 |
Tokyo Electron Limited | 11599 |
1 |
Shin-Etsu Chemical Co., Ltd. | 5132 |
1 |
Other owners | 38 |