- All sections
- B - Performing operationstransporting
- B28B - Shaping clay or other ceramic compositionsshaping slagshaping mixtures containing cementitious material, e.g. plaster
- B28B 7/20 - Moulds for making shaped articles with undercut recesses, e.g. dovetails
Patent holdings for IPC class B28B 7/20
Total number of patents in this class: 25
10-year publication summary
|
4
|
3
|
7
|
3
|
0
|
0
|
1
|
4
|
1
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| RISI Stone Inc. | 49 |
3 |
| Keystone Retaining Wall Systems LLC | 218 |
2 |
| The Boeing Company | 20048 |
1 |
| Alcoa Inc. | 292 |
1 |
| Duravit Aktiengesellschaft | 294 |
1 |
| E. Dillon & Company | 31 |
1 |
| Fluidsolids AG | 19 |
1 |
| Hawkeyepedershaab Concrete Technologies, Inc. | 32 |
1 |
| HBG Civiel B.V. | 6 |
1 |
| JAC Products, Inc. | 53 |
1 |
| Kobra Formen GmbH | 41 |
1 |
| Monier Technical Centre Limited | 1 |
1 |
| Pelican Products, Inc. | 243 |
1 |
| Redi-Rock International, LLC | 54 |
1 |
| Rosetta Hardscapes, LLC | 13 |
1 |
| Stone Strong LLC | 10 |
1 |
| Villeroy & Boch AG | 176 |
1 |
| Gouda-Torgerson Building Systems LLC | 13 |
1 |
| Warning Lites of Minnesota, Inc. | 1 |
1 |
| Hong Kong Yuxin Ceramic Technology Co., Ltd | 1 |
1 |
| Other owners | 2 |