- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 47/14 - Counterbalancing
Patent holdings for IPC class F04B 47/14
Total number of patents in this class: 53
10-year publication summary
|
3
|
6
|
8
|
3
|
6
|
1
|
2
|
1
|
2
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Weatherford Technology Holdings, LLC | 2068 |
23 |
| Iron Horse Patents, LLC | 10 |
5 |
| Bristol, Inc., d/b/a Remote Automation Solutions | 98 |
3 |
| DC Innovations Inc. | 3 |
3 |
| Richard Frederick McNichol | 3 |
2 |
| SEW-EURODRIVE GmbH & Co. KG | 2003 |
2 |
| Vertx Artificial Lift Inc. | 2 |
2 |
| Halliburton Energy Services, Inc. | 21169 |
1 |
| Crostek Management Corp. | 3 |
1 |
| Flowrox Oy | 8 |
1 |
| Guidemaster Manufacturing Corp. | 1 |
1 |
| Saudi Arabian Oil Company | 13943 |
1 |
| Apex Oilfield Equipment (QingDao) Co., Ltd. | 14 |
1 |
| Dimaco S.A.S. di Marrale Carmelo & C. | 2 |
1 |
| Silver Energy Services, LLC | 2 |
1 |
| Silverjack Artificial Lift, Inc. | 4 |
1 |
| Daniel E. Altman | 1 |
1 |
| Championx LLC | 602 |
1 |
| Ravdos Holdings Inc. | 49 |
1 |
| POC Hydraulic Technologies, LLC | 2 |
1 |
| Other owners | 0 |