- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 49/03 - Stopping, starting, unloading or idling control by means of valves
Patent holdings for IPC class F04B 49/03
Total number of patents in this class: 260
10-year publication summary
|
11
|
25
|
20
|
23
|
23
|
20
|
18
|
20
|
11
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20891 |
9 |
| Artemis Intelligent Power Limited | 100 |
8 |
| Illinois Tool Works Inc. | 11470 |
7 |
| Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | 1399 |
6 |
| Robert Bosch GmbH | 42689 |
5 |
| Dresser-Rand Company | 212 |
5 |
| Caterpillar Inc. | 9548 |
4 |
| Carrier Corporation | 4345 |
4 |
| Atlas Copco Airpower, naamloze vennootschap | 1031 |
4 |
| Graco Minnesota Inc. | 1195 |
4 |
| Quincy Compressor LLC | 32 |
4 |
| Diinef AS | 5 |
4 |
| Continental Reifen Deutschland GmbH | 2454 |
3 |
| Bendix Commercial Vehicle Systems LLC | 885 |
3 |
| Gen-Probe Incorporated | 994 |
3 |
| HOERBIGER Kompressortechnik Holding GmbH | 23 |
3 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2874 |
3 |
| Milwaukee Electric Tool Corporation | 4390 |
3 |
| Murata Manufacturing Co., Ltd. | 24526 |
2 |
| Hyundai Motor Company | 21987 |
2 |
| Other owners | 174 |