Fiber porosity forming fillers in thermal spray powders and coatings and method making and using the same
US-2021130243-A1 · May 6, 2021 · US
Carbonaceous materials, e.g. coal, carbon, graphite, hydrocarbons
Carbonaceous materials, e.g. coal, carbon, graphite, hydrocarbons · 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 | C04B38/068 |
| Official title | {Carbonaceous materials, e.g. coal, carbon, graphite, hydrocarbons} |
| Display label | Carbonaceous materials, e.g. coal, carbon, graphite, hydrocarbons |
| Total patents | 114 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 7 |
| 2017 | 6 |
| 2018 | 9 |
| 2019 | 16 |
| 2020 | 9 |
| 2021 | 12 |
| 2022 | 14 |
| 2023 | 11 |
| 2024 | 8 |
| 2025 | 7 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Porous ceramic products of titanium sub-oxides
US-10934218-B2 · Mar 2, 2021 · US
Method of using a screen containing a composite for release of well treatment agent into a well
US-10822536-B2 · Nov 3, 2020 · US
Method for manufacturing ceramic product containing silicon carbide
US-2020309454-A1 · Oct 1, 2020 · US
Method for estimating characteristics of ceramic fired body
US-2020300745-A1 · Sep 24, 2020 · US
Batch compositions comprising spheroidal pre-reacted inorganic particles and spheroidal pore-formers and methods of manufacture of honeycomb bodies therefrom
US-2020255338-A1 · Aug 13, 2020 · US
Honeycomb structure
US-10730804-B2 · Aug 4, 2020 · US
Method of predicting formed body density and method of manufacturing ceramic fired body
US-10677702-B2 · Jun 9, 2020 · US
Porous bodies with enhanced pore architecture prepared with oxalic acid
US-10676401-B2 · Jun 9, 2020 · US
Cordierite aluminum magnesium titanate compositions and ceramic articles comprising same
US-10526249-B2 · Jan 7, 2020 · US
Light-transmitting ceramic sintered body and method for producing same
US-2020002231-A1 · Jan 2, 2020 · US
Cordierite aluminum magnesium titanate compositions and ceramic articles comprising same
US-10501375-B2 · Dec 10, 2019 · US
Honeycomb structure and production method for said honeycomb structure
US-10472290-B2 · Nov 12, 2019 · US
Porous protective layer for gas sensor, method for producing same, and gas sensor comprising same
US-10473615-B2 · Nov 12, 2019 · US
Crosslinked starches for pore forming in ceramics
US-10472291-B2 · Nov 12, 2019 · US
Filter member and method of making same
US-2019321761-A1 · Oct 24, 2019 · US
Porous bodies with enhanced pore architecture prepared with oxalic acid
US-2019322592-A1 · Oct 24, 2019 · US
Cordierite aluminum magnesium titanate compositions and ceramic articles comprising same
US-10450233-B2 · Oct 22, 2019 · US
Porous ceramic products of titanium sub-oxides
US-2019315661-A1 · Oct 17, 2019 · US
Porous plate-shaped filler
US-10442739-B2 · Oct 15, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B38/068?
- CPC C04B38/068 is the Cooperative Patent Classification code for “Carbonaceous materials, e.g. coal, carbon, graphite, hydrocarbons.”
- How many patents are filed under CPC C04B38/068 (Carbonaceous materials, e.g. coal, carbon, graphite, hydrocarbons)?
- Our database includes 114 publications tagged with this CPC code.
- Is patent activity under CPC C04B38/068 growing?
- Publication counts under this code: 8 in 2024 vs 7 in 2025 (latest complete years).