Surfactants for agricultural products
US-12575563-B2 · Mar 17, 2026 · US
Sulfonic acid halides; alpha-Hydroxy-sulfonic acids; Amino-sulfonic acids; Thiosulfonic acids; Derivatives thereof · Cooperative Patent Classification (CPC)
Agriculture, food, personal care, health, and life sciences.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | A01N41/08 |
| Official title | Sulfonic acid halides; alpha-Hydroxy-sulfonic acids; Amino-sulfonic acids; Thiosulfonic acids; Derivatives thereof |
| Display label | Sulfonic acid halides; alpha-Hydroxy-sulfonic acids; Amino-sulfonic acids; Thiosulfonic acids; Derivatives thereof |
| Total patents | 52 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 7 |
| 2017 | 7 |
| 2018 | 5 |
| 2019 | 6 |
| 2020 | 4 |
| 2021 | 8 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 4 |
| 2025 | 2 |
| 2026 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12575563-B2 · Mar 17, 2026 · US
US-2025098692-A1 · Mar 27, 2025 · US
US-12203056-B2 · Jan 21, 2025 · US
US-2024315239-A1 · Sep 26, 2024 · US
US-12083480-B2 · Sep 10, 2024 · US
US-11992008-B2 · May 28, 2024 · US
US-2024158723-A1 · May 16, 2024 · US
US-11827867-B2 · Nov 28, 2023 · US
US-2022304322-A1 · Sep 29, 2022 · US
US-2022054384-A1 · Feb 24, 2022 · US
US-2021317388-A1 · Oct 14, 2021 · US
US-2021289776-A1 · Sep 23, 2021 · US
US-2021259250-A1 · Aug 26, 2021 · US
US-11091597-B2 · Aug 17, 2021 · US
US-2021228754-A1 · Jul 29, 2021 · US
US-2021170341-A1 · Jun 10, 2021 · US
US-11015151-B2 · May 25, 2021 · US
US-10961180-B2 · Mar 30, 2021 · US
US-10800794-B2 · Oct 13, 2020 · US
US-2020255775-A1 · Aug 13, 2020 · US
Answers are generated from the same data shown on this page.