- All sections
- B - Performing operations; transporting
- 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: 643
10-year publication summary
78
|
63
|
71
|
68
|
53
|
56
|
35
|
31
|
22
|
10
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Rtx Corporation | 8674 |
98 |
Safran Aircraft Engines | 5739 |
71 |
General Electric Company | 18133 |
45 |
GE Infrastructure Technology, LLC | 5873 |
19 |
Siemens AG | 24990 |
16 |
SAFRAN S.A. | 518 |
14 |
Metal Casting Technology, Inc. | 21 |
14 |
SNECMA S.A. | 1160 |
13 |
Hitchiner Manufacturing Co., Inc. | 28 |
12 |
Snecma | 1065 |
10 |
Siemens Energy, Inc. | 1770 |
9 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
7 |
Rolls-Royce PLC | 2944 |
7 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
7 |
Topgolf Callaway Brands Corp. | 1843 |
7 |
3m Innovative Properties Company | 18406 |
6 |
Honeywell International Inc. | 13799 |
6 |
Mikro Systems, Inc. | 56 |
6 |
Mitsubishi Hitachi Power Systems, Ltd. | 999 |
6 |
United Technologies Corporation | 2328 |
5 |
Other owners | 265 |