- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquidsrotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 2/00 - Rotary-piston machines or pumps
Patent holdings for IPC class F04C 2/00
Total number of patents in this class: 801
10-year publication summary
|
80
|
65
|
64
|
45
|
41
|
33
|
37
|
9
|
3
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 75485 |
63 |
| Copeland LP | 694 |
52 |
| Daikin Industries, Ltd. | 10452 |
22 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1533 |
17 |
| Hamilton Sundstrand Corporation | 5018 |
15 |
| Hitachi Astemo, Ltd. | 6418 |
14 |
| Bitzer Kuehlmaschinenbau GmbH | 156 |
13 |
| Mitsubishi Electric Corporation | 47852 |
12 |
| Schwabische Huttenwerke Automotive GmbH | 62 |
11 |
| Robert Bosch GmbH | 44034 |
10 |
| Hitachi-johnson Controls Air Conditioning, Inc. | 521 |
10 |
| Hanon Systems EFP Canada Ltd. | 67 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 9071 |
9 |
| Denso Corporation | 25444 |
9 |
| Edwards Limited | 778 |
9 |
| GM Global Technology Operations LLC | 15985 |
8 |
| Panasonic Intellectual Property Management Co., Ltd. | 33834 |
8 |
| KYB Corporation | 1417 |
8 |
| CIRCOR Pumps North America, LLC | 36 |
8 |
| Fujitsu General Limited | 588 |
7 |
| Other owners | 486 |