- All sections
- A - Human necessities
- A62C - Fire-fighting
- A62C 4/00 - Flame traps allowing passage of gas but not of flame or explosion wave
Patent holdings for IPC class A62C 4/00
Total number of patents in this class: 139
10-year publication summary
|
11
|
21
|
14
|
12
|
12
|
7
|
5
|
13
|
9
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| R. Stahl Schaltgeräte GmbH | 152 |
20 |
| Emerson Process Management Regulator Technologies Tulsa, LLC | 29 |
7 |
| Tescom Corporation | 111 |
6 |
| The Boeing Company | 20163 |
5 |
| Scepter US Holding Company. | 47 |
5 |
| BS & B Innovation Limited | 28 |
4 |
| Eaton Intelligent Power Limited | 6257 |
4 |
| Rieke LLC | 104 |
4 |
| CV Technology, Inc. | 37 |
3 |
| Fisher Controls International LLC | 1455 |
3 |
| Hamilton Sundstrand Corporation | 5014 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11124 |
2 |
| Andair AG | 4 |
2 |
| China Petroleum & Chemical Corporation | 2154 |
2 |
| Haier US Appliance Solutions, Inc. | 4041 |
2 |
| Kewaunee Scientific Corporation | 55 |
2 |
| Rosemount Inc. | 1144 |
2 |
| Single Buoy Moorings Inc. | 310 |
2 |
| Worcester Polytechnic Institute | 541 |
2 |
| Elmac Technologies Limited | 7 |
2 |
| Other owners | 58 |