- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; rotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 27/00 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
Patent holdings for IPC class F04C 27/00
Total number of patents in this class: 681
10-year publication summary
61
|
50
|
85
|
79
|
68
|
68
|
66
|
40
|
57
|
21
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Edwards Limited | 764 |
53 |
LG Electronics Inc. | 69257 |
47 |
Copeland LP | 656 |
42 |
Hanon Systems | 1632 |
26 |
Daikin Industries, Ltd. | 9495 |
23 |
Mitsubishi Heavy Industries Thermal Systems, Ltd. | 786 |
22 |
Toyota Industries Corporation | 1010 |
16 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
15 |
Trane International Inc. | 1123 |
13 |
Emerson Climate Technologies, Inc. | 308 |
12 |
Samsung Electronics Co., Ltd. | 131630 |
11 |
Emerson Climate Technologies (Suzhou) Co., Ltd. | 172 |
10 |
Hitachi Industrial Equipment Systems Co., Ltd. | 1334 |
10 |
Pfeiffer Vacuum | 153 |
10 |
Mitsubishi Electric Corporation | 43934 |
9 |
Agilent Technologies, Inc. | 2744 |
9 |
Copeland Climate Technologies (Suzhou) Co. Ltd. | 49 |
9 |
Atlas Copco Airpower, naamloze vennootschap | 915 |
8 |
Bitzer Kühlmaschinenbau GmbH | 176 |
8 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
7 |
Other owners | 321 |