- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 41/02 - Pumping installations or systems specially adapted for elastic fluids having reservoirs
Patent holdings for IPC class F04B 41/02
Total number of patents in this class: 353
10-year publication summary
|
38
|
41
|
31
|
40
|
36
|
30
|
33
|
16
|
29
|
16
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Black & Decker, Inc. | 2513 |
22 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1566 |
14 |
| Max Co., Ltd. | 871 |
12 |
| Koki Holdings Co.,Ltd | 905 |
9 |
| Makita Corporation | 2612 |
8 |
| Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 571 |
8 |
| Nabtesco Automotive Corporation | 128 |
8 |
| Thermedical, Inc. | 42 |
8 |
| Isuzu Motors Limited | 2336 |
6 |
| Robert Bosch GmbH | 44445 |
5 |
| Burckhardt Compression AG | 126 |
5 |
| Graco Minnesota Inc. | 1289 |
4 |
| Hitachi Koki Co., Ltd. | 383 |
4 |
| Hydrostor Inc. | 59 |
4 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2842 |
4 |
| Milwaukee Electric Tool Corporation | 5102 |
4 |
| Xi'an Thermal Power Research Institute Co., Ltd. | 458 |
4 |
| Doosan Bobcat North America Inc. | 658 |
4 |
| Fize Medical Ltd. | 10 |
4 |
| Ford Global Technologies, LLC | 21664 |
3 |
| Other owners | 213 |