- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04B - Positive-displacement machines for liquids; pumps
- F04B 19/22 - Other positive-displacement pumps of reciprocating-piston type
Patent holdings for IPC class F04B 19/22
Total number of patents in this class: 511
10-year publication summary
|
40
|
127
|
134
|
113
|
64
|
46
|
37
|
51
|
35
|
12
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Graco Minnesota Inc. | 1124 |
46 |
| SPM Oil & Gas Inc. | 304 |
34 |
| US Well Services LLC | 212 |
17 |
| Denso Corporation | 23338 |
16 |
| Caterpillar Inc. | 8877 |
15 |
| Robert Bosch GmbH | 40953 |
13 |
| Kerr Machine Co. | 98 |
11 |
| LG Electronics Inc. | 69257 |
9 |
| Medtronic MiniMed, Inc. | 1808 |
8 |
| Op-hygiene IP GmbH | 199 |
8 |
| Thermedical, Inc. | 39 |
8 |
| GD Energy Products, LLC | 78 |
8 |
| Typhon Technology Solutions (U.S.), LLC | 78 |
8 |
| Weatherford Technology Holdings, LLC | 2135 |
7 |
| S.P.M. Flow Control, Inc. | 101 |
7 |
| Delphi Technologies IP Limited | 1081 |
7 |
| Cummins Inc. | 2369 |
6 |
| Insulet Corporation | 736 |
5 |
| National Oilwell Varco, L.P. | 1604 |
5 |
| Water Pik, Inc. | 570 |
5 |
| Other owners | 268 |