- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F41H - Armour; armoured turrets; armoured or armed vehicles; means of attack or defence, e.g. camouflage, in general
- F41H 5/04 - Plate construction composed of more than one layer
Patent holdings for IPC class F41H 5/04
Total number of patents in this class: 1437
10-year publication summary
161
|
146
|
146
|
121
|
121
|
117
|
110
|
100
|
74
|
29
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Honeywell International Inc. | 13799 |
79 |
Avient Protective Materials B.V. | 155 |
51 |
DSM IP Assets B.V. | 5856 |
46 |
E. I. du Pont de Nemours and Company | 4345 |
37 |
Barrday Inc. | 78 |
30 |
Teijin Aramid B.V. | 182 |
29 |
The Boeing Company | 19843 |
28 |
DuPont Safety & Construction, Inc. | 676 |
23 |
Teijin Aramid GmbH | 49 |
21 |
PPG Industries Ohio, Inc. | 3430 |
19 |
Milliken & Company | 1253 |
17 |
The United States of America as represented by the Secretary of the Navy | 2734 |
16 |
Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2362 |
16 |
Saint-Gobain Centre de Recherches et d'Etudes Europeen | 475 |
15 |
BAE SYSTEMS plc | 2215 |
14 |
Greenhill Antiballistics Corporation | 15 |
12 |
Hardwire, LLC | 41 |
12 |
Societa' per Azioni Fratelli Citterio | 18 |
12 |
NP Aerospace Limited | 24 |
11 |
Disruptive Resources, LLC | 11 |
11 |
Other owners | 938 |