Methods and devices for controlled delivery
US-12582546-B2 · Mar 24, 2026 · US
Vas deferens occluders; Fallopian occluders
Vas deferens occluders; Fallopian occluders · Cooperative Patent Classification (CPC)
Agriculture, food, personal care, health, and life sciences.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | A61F6/20 |
| Official title | Vas deferens occluders; Fallopian occluders |
| Display label | Vas deferens occluders; Fallopian occluders |
| Total patents | 55 |
Filing trend
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 | 10 |
| 2017 | 9 |
| 2018 | 3 |
| 2019 | 5 |
| 2020 | 2 |
| 2021 | 6 |
| 2022 | 2 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Polymer system for forming a hydrogel
US-2025332319-A1 · Oct 30, 2025 · US
Methods and devices for controlled delivery
US-2025025332-A1 · Jan 23, 2025 · US
Method for controlling flow of eggs in a uretine tube
US-2024407942-A1 · Dec 12, 2024 · US
Methods and devices for controlled delivery
US-12127968-B2 · Oct 29, 2024 · US
Systems and methods for permanent female contraception
US-12089892-B2 · Sep 17, 2024 · US
Method for controlling flow of eggs in a uterine tube
US-12064374-B2 · Aug 20, 2024 · US
Method for controlling flow of sperms in a uterine tube
US-2024009454-A1 · Jan 11, 2024 · US
Methods and devices for controlled delivery
US-2023390105-A1 · Dec 7, 2023 · US
Methods and devices for controlled delivery
US-2023329900-A1 · Oct 19, 2023 · US
Methods and devices for controlled delivery
US-11744729-B2 · Sep 5, 2023 · US
Method for controlling flow of sperms in a uterine tube
US-11672977-B2 · Jun 13, 2023 · US
Device for obtaining male contraception
US-11617678-B2 · Apr 4, 2023 · US
Systems and methods for permanent female contraception
US-2022378501-A1 · Dec 1, 2022 · US
Systems and methods for permanent female contraception
US-11426234-B2 · Aug 30, 2022 · US
Method for controlling flow of eggs in a uterine tube
US-2021401615-A1 · Dec 30, 2021 · US
Method for controlling flow of eggs in a uterine tube
US-11135086-B2 · Oct 5, 2021 · US
Apparatus for controlling flow in a bodily organ
US-2021212857-A1 · Jul 15, 2021 · US
Apparatus for controlling flow in a bodily organ
US-2021205121-A1 · Jul 8, 2021 · US
Apparatus for controlling flow in a bodily organ
US-2021205123-A1 · Jul 8, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC A61F6/20?
- CPC A61F6/20 is the Cooperative Patent Classification code for “Vas deferens occluders; Fallopian occluders.”
- How many patents are filed under CPC A61F6/20 (Vas deferens occluders; Fallopian occluders)?
- Our database includes 55 publications tagged with this CPC code.
- Is patent activity under CPC A61F6/20 growing?
- Publication counts under this code: 5 in 2024 vs 2 in 2025 (latest complete years).