- All sections
- B - Performing operationstransporting
- B22C - Foundry moulding
- B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
Patent holdings for IPC class B22C 3/00
Total number of patents in this class: 291
10-year publication summary
|
23
|
33
|
23
|
26
|
16
|
19
|
20
|
14
|
13
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hüttenes-Albertus Chemische Werke GmbH | 157 |
16 |
| Toyota Motor Corporation | 31819 |
14 |
| ASK Chemicals GmbH | 156 |
11 |
| MEC International Co., Ltd. | 15 |
11 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12821 |
10 |
| Rtx Corporation | 9332 |
9 |
| Yushiro Chemical Industry Co., Ltd. | 60 |
8 |
| Foseco International Limited | 213 |
7 |
| Ube Industries, Ltd. | 852 |
6 |
| Hitachi Metals, Ltd. | 1985 |
5 |
| Kao Corporation | 4959 |
5 |
| HA International, LLC | 40 |
5 |
| Mitsubishi Heavy Industries, Ltd. | 8694 |
4 |
| GM Global Technology Operations LLC | 14968 |
4 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10924 |
4 |
| Aoki Science Institute Co., Ltd. | 13 |
4 |
| Ashland-sudchemie-kernfest GmbH | 20 |
4 |
| CARBO Ceramics Inc. | 237 |
4 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2876 |
4 |
| General Electric Company | 13811 |
3 |
| Other owners | 153 |