- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04B - Positive-displacement machines for liquids; pumps
- F04B 37/12 - Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups for special use to obtain high pressure
Patent holdings for IPC class F04B 37/12
Total number of patents in this class: 118
10-year publication summary
|
10
|
11
|
6
|
13
|
22
|
13
|
12
|
11
|
15
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kerr Machine Co. | 98 |
5 |
| Kennametal Inc. | 1380 |
4 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
3 |
| Anest Iwata Corporation | 168 |
3 |
| KMT Waterjet Systems Inc. | 34 |
3 |
| RSM Imagineering AS | 12 |
3 |
| Schlumberger Technology Corporation | 9690 |
2 |
| Halliburton Energy Services, Inc. | 20165 |
2 |
| LG Electronics Inc. | 69257 |
2 |
| Robert Bosch GmbH | 40953 |
2 |
| General Fusion Inc. | 72 |
2 |
| Pressure Biosciences, Inc. | 33 |
2 |
| Pressure Wave Systems GmbH | 13 |
2 |
| TriTech Industries, Inc. | 10 |
2 |
| Westport Power Inc. | 131 |
2 |
| Zhe Jiang Hong Zhu Plastic Hardware Co., Ltd. | 6 |
2 |
| Vulcan Industrial Holdings LLC | 34 |
2 |
| Haier Smart Home Co., Ltd. | 4882 |
2 |
| CASTRO ARRIAGADA, Luis Osvaldo | 7 |
2 |
| Westport Fuel Systems Canada Inc. | 246 |
2 |
| Other owners | 69 |