- 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: 1283
10-year publication summary
|
216
|
208
|
134
|
105
|
108
|
121
|
96
|
91
|
90
|
80
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 43116 |
85 |
| Graco Minnesota Inc. | 1232 |
84 |
| LG Electronics Inc. | 73936 |
34 |
| Kerr Machine Co. | 157 |
30 |
| SPM Oil & Gas Inc. | 342 |
30 |
| Caterpillar Inc. | 9858 |
20 |
| Halliburton Energy Services, Inc. | 21114 |
17 |
| Denso Corporation | 24842 |
16 |
| Haier US Appliance Solutions, Inc. | 3807 |
16 |
| Forum US, Inc. | 344 |
10 |
| Nuovo Pignone Tecnologie S.r.l. | 1070 |
10 |
| Schlumberger Technology Corporation | 11102 |
9 |
| Burckhardt Compression AG | 123 |
9 |
| Fluid Metering, Inc. | 57 |
9 |
| Hitachi Astemo, Ltd. | 6380 |
9 |
| Agilent Technologies, Inc. | 2644 |
8 |
| Schaeffler Technologies AG & Co. KG | 10392 |
8 |
| National Oilwell Varco, L.P. | 1702 |
8 |
| Tandem Diabetes Care, Inc. | 469 |
8 |
| Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | 461 |
8 |
| Other owners | 855 |