- 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: 1245
10-year publication summary
|
216
|
208
|
134
|
105
|
108
|
121
|
95
|
90
|
91
|
50
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Graco Minnesota Inc. | 1210 |
83 |
| Robert Bosch GmbH | 42824 |
81 |
| LG Electronics Inc. | 73578 |
34 |
| SPM Oil & Gas Inc. | 330 |
29 |
| Kerr Machine Co. | 149 |
28 |
| Caterpillar Inc. | 9647 |
20 |
| Halliburton Energy Services, Inc. | 20946 |
16 |
| Denso Corporation | 24480 |
16 |
| Haier US Appliance Solutions, Inc. | 3699 |
16 |
| Forum US, Inc. | 337 |
10 |
| Nuovo Pignone Tecnologie S.r.l. | 998 |
10 |
| Schlumberger Technology Corporation | 10881 |
9 |
| Burckhardt Compression AG | 121 |
9 |
| Fluid Metering, Inc. | 53 |
9 |
| Hitachi Astemo, Ltd. | 6381 |
9 |
| Agilent Technologies, Inc. | 2638 |
8 |
| Schaeffler Technologies AG & Co. KG | 9995 |
8 |
| HYDAC Drive Center GmbH | 16 |
8 |
| Tandem Diabetes Care, Inc. | 458 |
8 |
| Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | 456 |
8 |
| Other owners | 826 |