- 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: 633
10-year publication summary
|
71
|
68
|
53
|
56
|
35
|
31
|
22
|
31
|
11
|
12
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 10102 |
90 |
| Safran Aircraft Engines | 6694 |
78 |
| General Electric Company | 13899 |
44 |
| GE Infrastructure Technology, LLC | 6171 |
19 |
| SAFRAN S.A. | 791 |
16 |
| Siemens AG | 24029 |
15 |
| SNECMA S.A. | 1146 |
13 |
| Snecma | 1058 |
10 |
| Siemens Energy, Inc. | 1685 |
9 |
| Hitchiner Manufacturing Co., Inc. | 25 |
9 |
| Metal Casting Technology, Inc. | 14 |
9 |
| Mitsubishi Heavy Industries, Ltd. | 9128 |
7 |
| Rolls-Royce PLC | 3221 |
7 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2836 |
7 |
| Taylor Made Golf Company, Inc. | 1309 |
7 |
| Topgolf Callaway Brands Corp. | 762 |
7 |
| 3m Innovative Properties Company | 17478 |
6 |
| Honeywell International Inc. | 12778 |
6 |
| Mikro Systems, Inc. | 56 |
6 |
| Mitsubishi Hitachi Power Systems, Ltd. | 991 |
6 |
| Other owners | 262 |