- 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: 354
10-year publication summary
24
|
28
|
41
|
28
|
32
|
29
|
17
|
16
|
6
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
NGK Insulators, Ltd. | 4589 |
59 |
Corning Incorporated | 9932 |
47 |
Ibiden Co., Ltd. | 1724 |
22 |
Hitachi Metals, Ltd. | 2175 |
15 |
Denso Corporation | 23338 |
11 |
Sumitomo Chemical Company, Limited | 8808 |
9 |
Robert Bosch GmbH | 40953 |
6 |
Shildan Inc. | 13 |
4 |
Saint-Gobain Centre de Recherches et d'Etudes Europeen | 475 |
3 |
SANYO Chemical Industries, Ltd. | 472 |
3 |
Shenzhen Tatfook Technology Co., Ltd. | 102 |
3 |
Mantec Technical Ceramics Limited | 4 |
3 |
XtreeE | 12 |
3 |
BASF SE | 19740 |
2 |
Toyota Motor Corporation | 28582 |
2 |
The Boeing Company | 19843 |
2 |
Boston Scientific Scimed, Inc. | 8794 |
2 |
Kyocera Corporation | 12735 |
2 |
Lexmark International, Inc. | 1793 |
2 |
University of Southern California | 2016 |
2 |
Other owners | 152 |