- 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: 276
10-year publication summary
|
25
|
20
|
23
|
23
|
20
|
19
|
23
|
15
|
13
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21338 |
10 |
| Illinois Tool Works Inc. | 11863 |
7 |
| Robert Bosch GmbH | 44160 |
7 |
| Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | 1351 |
6 |
| Caterpillar Inc. | 10267 |
5 |
| Artemis Intelligent Power Limited | 89 |
5 |
| Graco Minnesota Inc. | 1280 |
5 |
| Carrier Corporation | 3955 |
4 |
| Atlas Copco Airpower, naamloze vennootschap | 1081 |
4 |
| Bendix Commercial Vehicle Systems LLC | 880 |
4 |
| Dresser-Rand Company | 206 |
4 |
| Quincy Compressor LLC | 31 |
4 |
| Diinef AS | 5 |
4 |
| Doosan Bobcat North America Inc. | 650 |
4 |
| Continental Reifen Deutschland GmbH | 2538 |
3 |
| Siemens Energy, Inc. | 1685 |
3 |
| Gen-Probe Incorporated | 1039 |
3 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1541 |
3 |
| HOERBIGER Kompressortechnik Holding GmbH | 23 |
3 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2836 |
3 |
| Other owners | 185 |