- 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: 254
10-year publication summary
|
19
|
14
|
17
|
22
|
16
|
32
|
13
|
24
|
31
|
19
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 44445 |
23 |
| SPM Oil & Gas Inc. | 362 |
16 |
| Halliburton Energy Services, Inc. | 21259 |
10 |
| Precision Planting LLC | 1206 |
10 |
| Kerr Machine Co. | 182 |
8 |
| Vulcan Industrial Holdings LLC | 93 |
8 |
| Graco Minnesota Inc. | 1289 |
7 |
| GD Energy Products, LLC | 143 |
7 |
| S.P.M. Flow Control, Inc. | 99 |
5 |
| Nuovo Pignone Tecnologie S.r.l. | 1121 |
5 |
| Haier US Appliance Solutions, Inc. | 4164 |
4 |
| Maximator GmbH | 28 |
4 |
| Utex Industries, Inc. | 36 |
4 |
| Shimadzu Corporation | 6388 |
3 |
| Hypertherm, Inc. | 681 |
3 |
| Peroni Pompe S.p.A. | 11 |
3 |
| Shape Technologies Group, Inc. | 22 |
3 |
| Bill Spitzer & Associates | 3 |
3 |
| Caterpillar Inc. | 10375 |
2 |
| Air Products and Chemicals, Inc. | 1475 |
2 |
| Other owners | 124 |