- 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: 266
10-year publication summary
|
11
|
23
|
20
|
22
|
21
|
20
|
19
|
20
|
13
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21078 |
9 |
| Artemis Intelligent Power Limited | 100 |
8 |
| Illinois Tool Works Inc. | 11554 |
7 |
| Robert Bosch GmbH | 43063 |
6 |
| Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | 1382 |
6 |
| Dresser-Rand Company | 209 |
5 |
| Caterpillar Inc. | 9768 |
4 |
| Carrier Corporation | 4009 |
4 |
| Atlas Copco Airpower, naamloze vennootschap | 1040 |
4 |
| Bendix Commercial Vehicle Systems LLC | 880 |
4 |
| Graco Minnesota Inc. | 1225 |
4 |
| Quincy Compressor LLC | 32 |
4 |
| Diinef AS | 5 |
4 |
| Continental Reifen Deutschland GmbH | 2462 |
3 |
| Siemens Energy, Inc. | 1703 |
3 |
| Gen-Probe Incorporated | 1008 |
3 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1483 |
3 |
| HOERBIGER Kompressortechnik Holding GmbH | 23 |
3 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2866 |
3 |
| Milwaukee Electric Tool Corporation | 4587 |
3 |
| Other owners | 176 |