- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16K - Valves; taps; cocks; actuating-floats; devices for venting or aerating
- F16K 1/38 - Valve members of conical shape
Patent holdings for IPC class F16K 1/38
Total number of patents in this class: 385
10-year publication summary
25
|
26
|
45
|
33
|
53
|
36
|
35
|
42
|
43
|
11
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Zhejiang DunAn Artificial Environment Co., Ltd | 394 |
20 |
Fisher Controls International LLC | 1520 |
13 |
Robert Bosch GmbH | 40953 |
9 |
Emerson Process Management Regulator Technologies, Inc. | 373 |
9 |
Zhejiang Sanhua Intelligent Controls Co., Ltd. | 185 |
8 |
Waters Technologies Corporation | 1654 |
6 |
Caldera Engineering, LC | 20 |
5 |
Mac Valves, Inc. | 82 |
5 |
Tescom Corporation | 124 |
5 |
TLV Co., Ltd. | 336 |
5 |
Kerr Machine Co. | 98 |
5 |
Cameron International Corporation | 1305 |
4 |
CareFusion 303, Inc. | 1975 |
4 |
Dresser LLC | 230 |
4 |
SPM Oil & Gas Inc. | 304 |
4 |
EcoWater Systems LLC | 139 |
3 |
Emerson Process Management (Tianjin) Valve Co., Ltd | 10 |
3 |
Emerson Process Management (Tianjin) Valves Co., Ltd | 11 |
3 |
Flow International Corporation | 162 |
3 |
Franke Kaffeemaschinen AG | 51 |
3 |
Other owners | 264 |