- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F41A - Functional features or details common to both smallarms and ordnance, e.g. cannonsmountings for smallarms or ordnance
- F41A 21/22 - Barrels which have undergone surface treatment, e.g. phosphating
Patent holdings for IPC class F41A 21/22
Total number of patents in this class: 12
10-year publication summary
|
3
|
1
|
0
|
4
|
2
|
1
|
1
|
1
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gunwright Intellectual Property LLC | 5 |
3 |
| Samsung Electronics Co., Ltd. | 139001 |
1 |
| The United States of America as represented by the Secretary of the Navy | 2720 |
1 |
| The United States of America as represented by the Secretary of the Army | 1183 |
1 |
| FN Herstal SA | 220 |
1 |
| Rheinmetall Waffe Munition GmbH | 561 |
1 |
| Texas State University | 55 |
1 |
| Richter Precision, Inc. | 3 |
1 |
| Maxterial, Inc. | 59 |
1 |
| Brown Dog Intellectual Properties | 6 |
1 |
| Other owners | 0 |