- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04B - Positive-displacement machines for liquids; pumps
- F04B 49/04 - Regulating by means of floats
Patent holdings for IPC class F04B 49/04
Total number of patents in this class: 67
10-year publication summary
|
5
|
3
|
4
|
13
|
12
|
5
|
4
|
6
|
3
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Liberty Pumps Inc. | 44 |
4 |
| RF Group LLC | 5 |
4 |
| DNI Realty, LLC | 28 |
3 |
| Franklin Fueling Systems, Inc. | 43 |
3 |
| Graco Minnesota Inc. | 1124 |
3 |
| Trico Group, LLC | 5 |
3 |
| PumpOne Environmental, LLC | 5 |
3 |
| Diversitech Corporation | 200 |
2 |
| Franklin Electric Co., Inc. | 217 |
2 |
| Noel, Raymond Ascord | 2 |
2 |
| Op-hygiene IP GmbH | 199 |
2 |
| Samsung Electronics Co., Ltd. | 131630 |
1 |
| Sears Brands, LLC | 84 |
1 |
| GM Global Technology Operations LLC | 13620 |
1 |
| Weatherford Technology Holdings, LLC | 2135 |
1 |
| Aisin AI Co., Ltd. | 122 |
1 |
| Askoll Holding S.r.l. | 34 |
1 |
| Beckett Corporation | 13 |
1 |
| Carlisle Fluid Technologies, Inc. | 150 |
1 |
| Encline Artificial Lift Technologies LLC | 12 |
1 |
| Other owners | 27 |