- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 53/74 - General processes for purification of waste gases; Apparatus or devices specially adapted therefor
Patent holdings for IPC class B01D 53/74
Total number of patents in this class: 386
10-year publication summary
|
30
|
13
|
19
|
25
|
17
|
13
|
16
|
13
|
15
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Heavy Industries, Ltd. | 8217 |
18 |
| General Electric Technology GmbH | 1657 |
15 |
| Mitsubishi Power, Ltd. | 1680 |
10 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
7 |
| Fuel Tech, Inc. | 57 |
6 |
| IHI Corporation | 3268 |
5 |
| Kanken Techno Co., Ltd. | 56 |
5 |
| Siemens Energy, Inc. | 1770 |
4 |
| Carbonxt Inc. | 31 |
4 |
| Edwards Limited | 764 |
4 |
| Messer Industries USA, Inc. | 103 |
4 |
| Toshiba Corporation | 12017 |
3 |
| Denso Corporation | 23338 |
3 |
| Applied Materials, Inc. | 16587 |
3 |
| Kyocera Corporation | 12735 |
3 |
| Uop LLC | 4083 |
3 |
| Komatsu Ltd. | 4265 |
3 |
| Ebara Corporation | 1951 |
3 |
| Battelle Memorial Institute | 2356 |
3 |
| Airgain, Inc. | 294 |
3 |
| Other owners | 277 |