Gypsum fiber roof panel with angled edge for accommodating environmentally-induced expansion
US-10486388-B2 · Nov 26, 2019 · US
Fibrous materials
Fibrous materials · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C04B20/0048 |
| Official title | {Fibrous materials} |
| Display label | Fibrous materials |
| Total patents | 151 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 11 |
| 2017 | 13 |
| 2018 | 13 |
| 2019 | 14 |
| 2020 | 17 |
| 2021 | 16 |
| 2022 | 9 |
| 2023 | 14 |
| 2024 | 15 |
| 2025 | 10 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Curable composition and resin for treatment of a subterranean formation
US-10428260-B2 · Oct 1, 2019 · US
Method for repairing a civil engineering structure
US-2019270239-A1 · Sep 5, 2019 · US
Hydrophobic finish compositions with extended flow time retention and building products made thereof
US-10399898-B2 · Sep 3, 2019 · US
Reinforced building block made of autoclaved aerated concrete (AAC)
US-10384977-B2 · Aug 20, 2019 · US
Multi-functional coating system for cementitious composite materials
US-10364196-B2 · Jul 30, 2019 · US
Loss circulation material composition having alkaline nanoparticle based dispersion and water insoluble hydrolysable polyester
US-10351755-B2 · Jul 16, 2019 · US
Use of CSH-seed modified fibers in oil field applications
US-10214676-B2 · Feb 26, 2019 · US
Set-delayed cement compositions comprising pumice and associated methods
US-10202751-B2 · Feb 12, 2019 · US
Aerogel compositions and methods of making and using them
US-10196814-B2 · Feb 5, 2019 · US
Hydrophobic finish compositions with extended flow time retention and building products made thereof
US-10155692-B2 · Dec 18, 2018 · US
Composition for joints
US-10131581-B2 · Nov 20, 2018 · US
Coating compositions for coating fibre cement board
US-2018305574-A1 · Oct 25, 2018 · US
Fibers, methods for their preparation and use in the manufacture of reinforced elements
US-10065887-B2 · Sep 4, 2018 · US
Wellbore servicing compositions and methods of making and using same
US-10066146-B2 · Sep 4, 2018 · US
Treatment fluids and uses thereof
US-10059869-B2 · Aug 28, 2018 · US
Plugging agent for improving formation bearing capacity and preparation method thereof
US-10017679-B1 · Jul 10, 2018 · US
Building material
US-9994490-B2 · Jun 12, 2018 · US
Method for manufacturing an aerogel-containing composite and composite produced by that method
US-9975270-B2 · May 22, 2018 · US
Gypsum composites containing cementitious materials and methods
US-9932271-B2 · Apr 3, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B20/0048?
- CPC C04B20/0048 is the Cooperative Patent Classification code for “Fibrous materials.”
- How many patents are filed under CPC C04B20/0048 (Fibrous materials)?
- Our database includes 151 publications tagged with this CPC code.
- Is patent activity under CPC C04B20/0048 growing?
- Publication counts under this code: 15 in 2024 vs 10 in 2025 (latest complete years).