- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04B - Positive-displacement machines for liquids; pumps
- F04B 37/16 - Means for nullifying unswept space
Patent holdings for IPC class F04B 37/16
Total number of patents in this class: 107
10-year publication summary
|
8
|
5
|
8
|
13
|
8
|
6
|
4
|
5
|
6
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Edwards Japan Limited | 376 |
21 |
| Sumitomo Heavy Industries, Ltd. | 1670 |
19 |
| ULVAC, Inc. | 1448 |
10 |
| Ebara Corporation | 1951 |
5 |
| BOC Edwards Japan Limited | 10 |
4 |
| Shimadzu Corporation | 5791 |
3 |
| Kashiyama Industries, Ltd. | 15 |
3 |
| Tecnos Company Limited | 4 |
3 |
| Tokyo Electron Limited | 11599 |
2 |
| Aisin Seiki Kabushiki Kaisha | 2427 |
2 |
| Canon Anelva Technix Corporation | 7 |
2 |
| Edwards Vacuum LLC | 155 |
2 |
| Sanoh Industrial Co., Ltd. | 189 |
2 |
| Sumitomo Seika Chemicals Co., Ltd. | 1028 |
2 |
| Ulvac Kiko, Inc. | 30 |
2 |
| Shine Technologies, LLC | 92 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
1 |
| Panasonic Corporation | 20786 |
1 |
| Amber Kinetics, Inc. | 44 |
1 |
| ASM Japan K.K. | 98 |
1 |
| Other owners | 19 |