- All sections
- B - Performing operationstransporting
- B22C - Foundry moulding
- B22C 9/04 - Use of lost patterns
Patent holdings for IPC class B22C 9/04
Total number of patents in this class: 625
10-year publication summary
|
67
|
62
|
51
|
51
|
35
|
30
|
21
|
31
|
11
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9765 |
89 |
| Safran Aircraft Engines | 6473 |
75 |
| General Electric Company | 13777 |
44 |
| GE Infrastructure Technology, LLC | 6206 |
19 |
| SAFRAN S.A. | 637 |
16 |
| Siemens AG | 24291 |
15 |
| SNECMA S.A. | 1148 |
13 |
| Snecma | 1061 |
10 |
| Siemens Energy, Inc. | 1698 |
9 |
| Hitchiner Manufacturing Co., Inc. | 25 |
9 |
| Metal Casting Technology, Inc. | 14 |
9 |
| Mitsubishi Heavy Industries, Ltd. | 8964 |
7 |
| Rolls-Royce PLC | 3173 |
7 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2855 |
7 |
| Taylor Made Golf Company, Inc. | 1289 |
7 |
| Topgolf Callaway Brands Corp. | 1664 |
7 |
| 3m Innovative Properties Company | 17596 |
6 |
| Honeywell International Inc. | 13564 |
6 |
| Mikro Systems, Inc. | 56 |
6 |
| Mitsubishi Hitachi Power Systems, Ltd. | 991 |
6 |
| Other owners | 258 |