Functionalized carbon nanofiber yarn
US-2025347048-A1 · Nov 13, 2025 · US
with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts
with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts · Cooperative Patent Classification (CPC)
Textile and paper production, treatment, and products.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | D06M11/55 |
| Official title | with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts |
| Display label | with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts |
| Total patents | 43 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 3 |
| 2017 | 5 |
| 2018 | 6 |
| 2019 | 1 |
| 2020 | 4 |
| 2021 | 1 |
| 2022 | 4 |
| 2023 | 1 |
| 2024 | 9 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Ceramic-Polymer Composites and Methods of Making the Same
US-2025314008-A1 · Oct 9, 2025 · US
Treatment agent for polyester-based synthetic fibers, composition containing treatment agent for polyester-based synthetic fibers, first treatment agent for polyester-based synthetic fibers, composition containing first treatment agent for polyester-based synthetic fibers, second treatment agent for polyester-based synthetic fibers, composition containing second treatment agent for polyester-based synthetic fibers, third treatment agent for polyester-based synthetic fibers, composition containin
US-2025257524-A1 · Aug 14, 2025 · US
Systems and methods for the functionalization of polyolefin fibers
US-2024352666-A1 · Oct 24, 2024 · US
Ceramic-polymer composites and methods of making the same
US-12091814-B2 · Sep 17, 2024 · US
Systems and methods for the functionalization of polyolefin fibers
US-12060677-B2 · Aug 13, 2024 · US
Method of producing amorphous carbon fibers, carbon fibers made therefrom and anodes made therefrom for use in electrochemical cells
US-12054854-B2 · Aug 6, 2024 · US
Method for coating textile materials
US-2024218588-A1 · Jul 4, 2024 · US
Fiber-treating agent
US-2024200261-A1 · Jun 20, 2024 · US
Composition comprising cellulose nanofiber and lignin or complex of these components, and method for producing lignocellulose-derived material
US-2024166772-A1 · May 23, 2024 · US
Silver-plated conductive nylon fiber and preparation method thereof
US-11982047-B2 · May 14, 2024 · US
Silver-plated conductive nylon fiber and preparation method thereof
US-2024026601-A1 · Jan 25, 2024 · US
Polymer fiber screen surface modifications for cation exchange membranes
US-2023250231-A1 · Aug 10, 2023 · US
Granules containing complex fibers of fibers with inorganic particles
US-2022349118-A1 · Nov 3, 2022 · US
Systems and methods for the functionalization of polyolefin fibers
US-2022316132-A1 · Oct 6, 2022 · US
Composite material
US-11420904-B2 · Aug 23, 2022 · US
Method of producing amorphous carbon fibers, carbon fibers made therefrom and anodes made therefrom for use in electrochemical cells
US-2022259772-A1 · Aug 18, 2022 · US
Fiber complexes and processes for preparing them
US-2021054563-A1 · Feb 25, 2021 · US
Method for preparing high fluffiness down by multiple treatments with metal salts
US-10760209-B1 · Sep 1, 2020 · US
Composite material
US-2020239363-A1 · Jul 30, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D06M11/55?
- CPC D06M11/55 is the Cooperative Patent Classification code for “with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts.”
- How many patents are filed under CPC D06M11/55 (with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts)?
- Our database includes 43 publications tagged with this CPC code.
- Is patent activity under CPC D06M11/55 growing?
- Publication counts under this code: 9 in 2024 vs 3 in 2025 (latest complete years).