- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04B - Positive-displacement machines for liquids; pumps
- F04B 49/20 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by changing the driving speed
Patent holdings for IPC class F04B 49/20
Total number of patents in this class: 648
10-year publication summary
46
|
70
|
76
|
84
|
76
|
60
|
79
|
47
|
57
|
6
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
US Well Services LLC | 212 |
35 |
Pentair Water Pool and Spa, Inc. | 457 |
20 |
Caterpillar Inc. | 8877 |
16 |
BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC) | 196 |
15 |
Weatherford Technology Holdings, LLC | 2135 |
14 |
Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 566 |
12 |
Robert Bosch GmbH | 40953 |
11 |
Nordson Corporation | 1246 |
11 |
Copeland LP | 656 |
11 |
Graco Minnesota Inc. | 1124 |
10 |
Atlas Copco Airpower, naamloze vennootschap | 915 |
8 |
Fluid Handling LLC | 241 |
8 |
Trane International Inc. | 1123 |
8 |
Typhon Technology Solutions (U.S.), LLC | 78 |
8 |
LG Electronics Inc. | 69257 |
7 |
Hyundai Motor Company | 19021 |
7 |
Repligen Corporation | 258 |
7 |
Baker Hughes Holdings LLC | 3060 |
7 |
Kia Motors Corporation | 7946 |
6 |
Hitachi Industrial Equipment Systems Co., Ltd. | 1334 |
6 |
Other owners | 421 |