- All sections
- B - Performing operations; transporting
- B28D - Working stone or stone-like materials
- B28D 1/22 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
Patent holdings for IPC class B28D 1/22
Total number of patents in this class: 249
10-year publication summary
|
26
|
30
|
27
|
28
|
10
|
19
|
24
|
25
|
20
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Germans Boada, S.A. | 129 |
40 |
| Siltectra GmbH | 88 |
20 |
| Disco Corporation | 1745 |
8 |
| Nippon Electric Glass Co., Ltd. | 2299 |
8 |
| Corning Incorporated | 9932 |
7 |
| Bellota Herramientas, S.A. | 15 |
7 |
| Bando Kiko Co., Ltd. | 73 |
6 |
| Hamamatsu Photonics K.K. | 4161 |
5 |
| Wolfcraft GmbH | 110 |
5 |
| Asahi Glass Company, Limited | 2985 |
4 |
| Aquajet Systems Holding AB | 14 |
4 |
| Keystone Retaining Wall Systems LLC | 228 |
4 |
| Bohle AG | 119 |
3 |
| Agc, Inc. | 4029 |
3 |
| 3D-Micromac AG | 47 |
2 |
| Cortag Indústria e Comercio Ltda. | 14 |
2 |
| Etablissements Pierre Grehal et Cie SA | 33 |
2 |
| Japan Agency for Marine-Earth Science and Technology | 172 |
2 |
| Keystone Retaining Wall Systems, Inc. | 36 |
2 |
| Marshalltown Company | 70 |
2 |
| Other owners | 113 |