- All sections
- B - Performing operations; transporting
- B28B - Shaping clay or other ceramic compositions; shaping slag; shaping mixtures containing cementitious material, e.g. plaster
- B28B 3/20 - Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
Patent holdings for IPC class B28B 3/20
Total number of patents in this class: 352
10-year publication summary
28
|
41
|
28
|
33
|
30
|
17
|
20
|
6
|
9
|
1
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
NGK Insulators, Ltd. | 4792 |
61 |
Corning Incorporated | 10125 |
48 |
Ibiden Co., Ltd. | 1736 |
22 |
Hitachi Metals, Ltd. | 2021 |
15 |
Denso Corporation | 23769 |
12 |
Sumitomo Chemical Company, Limited | 8988 |
9 |
Robert Bosch GmbH | 41786 |
5 |
Shildan Inc. | 14 |
4 |
Kyocera Corporation | 13344 |
3 |
24M Technologies, Inc. | 245 |
3 |
Holcim Technology Ltd. | 995 |
3 |
Putzmeister Engineering GmbH | 337 |
3 |
Saint-Gobain Centre de Recherches et d'Etudes Europeen | 486 |
3 |
SANYO Chemical Industries, Ltd. | 475 |
3 |
The School Corporation Kansai University | 160 |
3 |
Shenzhen Tatfook Technology Co., Ltd. | 102 |
3 |
Mantec Technical Ceramics Limited | 4 |
3 |
XtreeE | 14 |
3 |
BASF SE | 20432 |
2 |
Toyota Motor Corporation | 30455 |
2 |
Other owners | 142 |