- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 53/14 - Pistons, piston-rods or piston-rod connections
Patent holdings for IPC class F04B 53/14
Total number of patents in this class: 1326
10-year publication summary
|
211
|
143
|
114
|
114
|
126
|
104
|
101
|
97
|
91
|
50
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 44398 |
87 |
| Graco Minnesota Inc. | 1290 |
85 |
| Kerr Machine Co. | 180 |
33 |
| LG Electronics Inc. | 76299 |
32 |
| SPM Oil & Gas Inc. | 361 |
30 |
| Caterpillar Inc. | 10343 |
20 |
| Halliburton Energy Services, Inc. | 21296 |
18 |
| Denso Corporation | 25820 |
16 |
| Haier US Appliance Solutions, Inc. | 4165 |
16 |
| Burckhardt Compression AG | 126 |
10 |
| Forum US, Inc. | 351 |
10 |
| National Oilwell Varco, L.P. | 1698 |
10 |
| Nuovo Pignone Tecnologie S.r.l. | 1232 |
10 |
| Schlumberger Technology Corporation | 11981 |
9 |
| Fluid Metering, Inc. | 73 |
9 |
| Hitachi Astemo, Ltd. | 6434 |
9 |
| GD Energy Products, LLC | 142 |
9 |
| Agilent Technologies, Inc. | 2648 |
8 |
| Schaeffler Technologies AG & Co. KG | 11233 |
8 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4148 |
8 |
| Other owners | 889 |