- 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: 1228
10-year publication summary
|
225
|
211
|
143
|
114
|
114
|
126
|
100
|
98
|
95
|
32
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 42450 |
81 |
| Graco Minnesota Inc. | 1180 |
79 |
| LG Electronics Inc. | 72473 |
34 |
| SPM Oil & Gas Inc. | 323 |
29 |
| Kerr Machine Co. | 127 |
24 |
| Caterpillar Inc. | 9472 |
20 |
| Halliburton Energy Services, Inc. | 20749 |
16 |
| Denso Corporation | 24120 |
16 |
| Haier US Appliance Solutions, Inc. | 3566 |
16 |
| Fluid Metering, Inc. | 56 |
10 |
| Forum US, Inc. | 331 |
10 |
| Schlumberger Technology Corporation | 10627 |
9 |
| Burckhardt Compression AG | 120 |
9 |
| Hitachi Astemo, Ltd. | 6369 |
9 |
| Agilent Technologies, Inc. | 2641 |
8 |
| Schaeffler Technologies AG & Co. KG | 9747 |
8 |
| HYDAC Drive Center GmbH | 16 |
8 |
| Tandem Diabetes Care, Inc. | 445 |
8 |
| Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | 445 |
8 |
| Weatherford Technology Holdings, LLC | 2014 |
7 |
| Other owners | 819 |