- 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: 44
10-year publication summary
3
|
5
|
6
|
4
|
7
|
9
|
8
|
8
|
8
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
F.J. Feddersen, Inc. | 6 |
4 |
The United States of America as represented by the Secretary of the Army | 1195 |
3 |
BAE SYSTEMS plc | 2215 |
2 |
Repkon Machine and Tool Industry and Trade Inc. | 10 |
2 |
Rheinmetall Waffe Munition GmbH | 559 |
2 |
Skychase Holdings Corporation | 38 |
2 |
Steyr Mannlicher GmbH | 17 |
2 |
Ritter & Stark GmbH | 4 |
2 |
eMag Salach GmbH | 2 |
2 |
KUKHALEISHVILI, Rati | 3 |
2 |
Gardner and Gardner Realty Co., Inc. | 9 |
2 |
The United States of America as represented by the Secretary of the Navy | 2734 |
1 |
Agency for Defense Development | 375 |
1 |
BAE Systems Bofors AB | 187 |
1 |
BioFire Technologies Inc. | 34 |
1 |
Carrel Innovations Oy | 2 |
1 |
FBMS Associates, Trustee for Firearm Barrel-Modification System CRT Trust | 1 |
1 |
Fortis Manufacturing, Inc. | 9 |
1 |
Heizer Defense, LLC | 18 |
1 |
Innovative Intellectual Properties LLC | 2 |
1 |
Other owners | 10 |