Anti-propylene mask and method for preparation thereof
US-12569705-B2 · Mar 10, 2026 · US
Amides {imides, sulfamic acids}
Amides {imides, sulfamic acids} · 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 | D06M13/402 |
| Official title | Amides {imides, sulfamic acids} |
| Display label | Amides {imides, sulfamic acids} |
| Total patents | 56 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 5 |
| 2017 | 8 |
| 2018 | 5 |
| 2019 | 6 |
| 2020 | 10 |
| 2021 | 3 |
| 2022 | 7 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Surface-modified fibers, reinforcing fibers, and molded article using same
US-2025376566-A1 · Dec 11, 2025 · US
Fluorine-containing compound
US-2025333902-A1 · Oct 30, 2025 · US
Surface-modified fibers, reinforcing fibers, and molded article using same
US-12435195-B2 · Oct 7, 2025 · US
Biocides and adhesive binding thereof
US-2025287947-A1 · Sep 18, 2025 · US
Repellent
US-2025237016-A1 · Jul 24, 2025 · US
Method for producing liquid-repellent fibers
US-2025146214-A1 · May 8, 2025 · US
Oil-resistant agent
US-2024141582-A1 · May 2, 2024 · US
Rubber-reinforcing cord and rubber product using same
US-11932738-B2 · Mar 19, 2024 · US
Launderable bactericidal and virucidal fabric finish
US-11856953-B2 · Jan 2, 2024 · US
Anti-propylene mask and method for preparation thereof
US-2023211190-A1 · Jul 6, 2023 · US
Finish composition
US-11466400-B2 · Oct 11, 2022 · US
Surface-modified fibers, reinforcing fibers, and molded article using same
US-2022306822-A1 · Sep 29, 2022 · US
Launderable bactericidal and virucidal fabric finish
US-2022287304-A1 · Sep 15, 2022 · US
Cool-sensation imparter composition containing 2,2,6-trimethylcyclohexanecarboxylic acid derivative
US-11344488-B2 · May 31, 2022 · US
Methods, compositions and uses relating thereto
US-11311471-B2 · Apr 26, 2022 · US
Method of strengthening non-keratinous fibers, and uses thereof
US-2022120031-A1 · Apr 21, 2022 · US
Napped artificial leather and method for producing the same
US-2022018061-A1 · Jan 20, 2022 · US
Surface treatment of ultra-high molecular weight polymers
US-11186945-B1 · Nov 30, 2021 · US
Toothed belt
US-11085505-B2 · Aug 10, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D06M13/402?
- CPC D06M13/402 is the Cooperative Patent Classification code for “Amides {imides, sulfamic acids}.”
- How many patents are filed under CPC D06M13/402 (Amides {imides, sulfamic acids})?
- Our database includes 56 publications tagged with this CPC code.
- Is patent activity under CPC D06M13/402 growing?
- Publication counts under this code: 3 in 2024 vs 6 in 2025 (latest complete years).