Methods of preparing plant-based prepregs for composite laminates
US-2024399679-A1 · Dec 5, 2024 · US
Fibrous or filamentary layer
Fibrous or filamentary layer · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B32B2260/021 |
| Official title | Fibrous or filamentary layer |
| Display label | Fibrous or filamentary layer |
| Total patents | 3,729 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 168 |
| 2016 | 228 |
| 2017 | 251 |
| 2018 | 365 |
| 2019 | 407 |
| 2020 | 460 |
| 2021 | 410 |
| 2022 | 396 |
| 2023 | 380 |
| 2024 | 329 |
| 2025 | 288 |
| 2026 | 47 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Molded ceiling material for vehicle
US-2024351532-A1 · Oct 24, 2024 · US
Laminate
US-2024336047-A1 · Oct 10, 2024 · US
Composite structure for a crossarm
US-2024165908-A1 · May 23, 2024 · US
Glass Cloth and Method of Manufacture
US-2024140863-A1 · May 2, 2024 · US
Propeller blade
US-2024109645-A1 · Apr 4, 2024 · US
Method for manufacturing molded article, and composite material
US-11932741-B2 · Mar 19, 2024 · US
Laminates
US-2024034027-A1 · Feb 1, 2024 · US
Elastic resin sheet having light-diffusing portion, and light-emitting sheet using same
US-2024027053-A1 · Jan 25, 2024 · US
Method of making surf fin including injection molded pre-impregnated composite fiber matrix inserts
US-2024017455-A1 · Jan 18, 2024 · US
Dry fibrous tape for manufacturing preform
US-2015375461-A1 · Dec 31, 2015 · US
Method for producing a multilayer composite material, multilayer composite material obtained by the method and mechanical parts or structures produced with said material
US-2015375464-A1 · Dec 31, 2015 · US
Conductive bonded composites
US-2015361308-A1 · Dec 17, 2015 · US
Datasheet for a security and/or value document
US-2015352880-A1 · Dec 10, 2015 · US
Fire resistant electrical panel
US-2015342022-A1 · Nov 26, 2015 · US
Resin composition, prepreg, laminate, metallic foil clad laminate, and printed circuit board
US-2015319853-A1 · Nov 5, 2015 · US
Molybdenum composite hybrid laminates and methods
US-2015306859-A1 · Oct 29, 2015 · US
Composite staple
US-9162419-B2 · Oct 20, 2015 · US
Shingle with Reinforcement Layer
US-2015292208-A1 · Oct 15, 2015 · US
Molded product having hollow structure and process for producing same
US-2015266260-A1 · Sep 24, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B32B2260/021?
- CPC B32B2260/021 is the Cooperative Patent Classification code for “Fibrous or filamentary layer.”
- How many patents are filed under CPC B32B2260/021 (Fibrous or filamentary layer)?
- Our database includes 3,729 publications tagged with this CPC code.
- Is patent activity under CPC B32B2260/021 growing?
- Publication counts under this code: 329 in 2024 vs 288 in 2025 (latest complete years).