- All sections
- B - Performing operations; transporting
- B28B - Shaping clay or other ceramic compositions; shaping slag; shaping 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: 23
10-year publication summary
|
6
|
4
|
3
|
7
|
3
|
0
|
0
|
1
|
4
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| RISI Stone Inc. | 54 |
3 |
| Keystone Retaining Wall Systems LLC | 228 |
2 |
| The Boeing Company | 19843 |
1 |
| Alcoa Inc. | 323 |
1 |
| Duravit Aktiengesellschaft | 221 |
1 |
| E. Dillon & Company | 36 |
1 |
| Fluidsolids AG | 14 |
1 |
| HBG Civiel B.V. | 6 |
1 |
| JAC Products, Inc. | 50 |
1 |
| Kobra Formen GmbH | 44 |
1 |
| Monier Technical Centre Limited | 1 |
1 |
| Pelican Products, Inc. | 201 |
1 |
| Redi-Rock International, LLC | 41 |
1 |
| Rosetta Hardscapes, LLC | 26 |
1 |
| Stone Strong LLC | 10 |
1 |
| Villeroy & Boch AG | 182 |
1 |
| Gouda-Torgerson Building Systems LLC | 13 |
1 |
| Warning Lites of Minnesota, Inc. | 1 |
1 |
| Hong Kong Yuxin Ceramic Technology Co., Ltd | 1 |
1 |
| Rtx Corporation | 8674 |
1 |
| Other owners | 0 |