- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F28G - Cleaning of internal or external surfaces of heat-exchange or heat-transfer conduits, e.g. water tubes of boilers
- F28G 15/00 - CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OF BOILERS - Details
Patent holdings for IPC class F28G 15/00
Total number of patents in this class: 296
10-year publication summary
|
21
|
31
|
28
|
32
|
30
|
32
|
23
|
35
|
23
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Stoneage, Inc. | 224 |
22 |
| Haier Smart Home Co., Ltd. | 4882 |
17 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
16 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1721 |
16 |
| Terydon, Inc. | 29 |
11 |
| LOBBE Industrieservice GmbH & Co KG | 19 |
10 |
| Integrated Test & Measurement (ITM), LLC | 8 |
8 |
| Ecolab USA Inc. | 5190 |
7 |
| Altum Technologies Oy | 11 |
5 |
| Siemens AG | 24990 |
4 |
| AGCO Corporation | 1062 |
4 |
| Coil Flow Max Inc. | 5 |
4 |
| International Paper Company | 857 |
4 |
| Peinemann Equipment B.V. | 20 |
4 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
3 |
| Andritz Oy | 276 |
3 |
| Candu Energy Inc. | 47 |
3 |
| Dominion Engineering, Inc. | 33 |
3 |
| Empig AS | 11 |
3 |
| Fractal Heatsink Technologies, LLC | 18 |
3 |
| Other owners | 146 |