- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 53/02 - Packing the free space between cylinders and pistons
Patent holdings for IPC class F04B 53/02
Total number of patents in this class: 235
10-year publication summary
|
12
|
18
|
13
|
14
|
16
|
13
|
26
|
13
|
20
|
23
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 43063 |
22 |
| SPM Oil & Gas Inc. | 337 |
15 |
| Halliburton Energy Services, Inc. | 21078 |
10 |
| Kerr Machine Co. | 157 |
7 |
| Graco Minnesota Inc. | 1225 |
6 |
| Vulcan Industrial Holdings LLC | 64 |
6 |
| GD Energy Products, LLC | 120 |
6 |
| Precision Planting LLC | 1146 |
5 |
| S.P.M. Flow Control, Inc. | 99 |
5 |
| Nuovo Pignone Tecnologie S.r.l. | 1046 |
5 |
| Haier US Appliance Solutions, Inc. | 3787 |
4 |
| Maximator GmbH | 20 |
4 |
| Shimadzu Corporation | 6232 |
3 |
| A.W. Chesterton Company | 92 |
3 |
| Eveon | 39 |
3 |
| Hypertherm, Inc. | 640 |
3 |
| Peroni Pompe S.p.A. | 12 |
3 |
| HPDI Technology Limited Partnership | 175 |
3 |
| Denso Corporation | 24783 |
2 |
| Caterpillar Inc. | 9768 |
2 |
| Other owners | 118 |