- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04B - Positive-displacement machines for liquids; pumps
- 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: 1146
10-year publication summary
|
141
|
225
|
211
|
143
|
114
|
114
|
124
|
95
|
88
|
25
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 40953 |
85 |
| Graco Minnesota Inc. | 1124 |
73 |
| LG Electronics Inc. | 69257 |
32 |
| SPM Oil & Gas Inc. | 304 |
27 |
| Caterpillar Inc. | 8877 |
20 |
| Kerr Machine Co. | 98 |
20 |
| Denso Corporation | 23338 |
17 |
| Haier US Appliance Solutions, Inc. | 3178 |
17 |
| Halliburton Energy Services, Inc. | 20165 |
13 |
| Schlumberger Technology Corporation | 9690 |
9 |
| Weatherford Technology Holdings, LLC | 2135 |
9 |
| Fluid Metering, Inc. | 38 |
9 |
| Hitachi Astemo, Ltd. | 5618 |
9 |
| Agilent Technologies, Inc. | 2744 |
8 |
| Schaeffler Technologies AG & Co. KG | 8880 |
8 |
| Burckhardt Compression AG | 116 |
8 |
| HYDAC Drive Center GmbH | 15 |
8 |
| Eveon | 36 |
7 |
| Forum US, Inc. | 315 |
7 |
| Proteus Industries, Inc. | 50 |
7 |
| Other owners | 753 |