- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F41A - Functional features or details common to both smallarms and ordnance, e.g. cannons; mountings for smallarms or ordnance
- F41A 21/18 - Grooves; Rifling
Patent holdings for IPC class F41A 21/18
Total number of patents in this class: 51
10-year publication summary
|
5
|
6
|
4
|
7
|
9
|
8
|
8
|
9
|
8
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| F.J. Feddersen, Inc. | 6 |
4 |
| WHG Properties, LLC | 330 |
4 |
| The United States of America as represented by the Secretary of the Army | 1182 |
3 |
| BAE SYSTEMS plc | 2285 |
2 |
| Repkon Machine and Tool Industry and Trade Inc. | 10 |
2 |
| Rheinmetall Waffe Munition GmbH | 561 |
2 |
| Skychase Holdings Corporation | 36 |
2 |
| Steyr Mannlicher GmbH | 17 |
2 |
| Axon Enterprise, Inc. | 714 |
2 |
| Ritter & Stark GmbH | 4 |
2 |
| eMag Salach GmbH | 2 |
2 |
| KUKHALEISHVILI, Rati | 3 |
2 |
| Gibson Robotics Ltd | 2 |
2 |
| Gardner and Gardner Realty Co., Inc. | 9 |
2 |
| The United States of America as represented by the Secretary of the Navy | 2722 |
1 |
| Agency for Defense Development | 406 |
1 |
| BAE Systems Bofors AB | 202 |
1 |
| BioFire Technologies Inc. | 43 |
1 |
| Carrel Innovations Oy | 2 |
1 |
| FBMS Associates, Trustee for Firearm Barrel-Modification System CRT Trust | 1 |
1 |
| Other owners | 12 |