Modular hold-open device for door closers
US-2025198211-A1 · Jun 19, 2025 · US
This page is not indexed by search engines while we improve data quality.
Mechanical power-locks, e.g. for holding the wing open or for free-moving zones
Mechanical power-locks, e.g. for holding the wing open or for free-moving zones · Cooperative Patent Classification (CPC)
Building, mining, and civil engineering structures.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | E05F3/221 |
| Official title | {Mechanical power-locks, e.g. for holding the wing open or for free-moving zones} |
| Display label | Mechanical power-locks, e.g. for holding the wing open or for free-moving zones |
| Total patents | 18 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2017 | 2 |
| 2019 | 1 |
| 2020 | 4 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Damped door closer system and method
US-12331580-B1 · Jun 17, 2025 · US
Assembly with an open-door locking system
US-2025020014-A1 · Jan 16, 2025 · US
Modular hold-open device for door closers
US-12071806-B2 · Aug 27, 2024 · US
Modular hold-open device for door closers
US-2023313585-A1 · Oct 5, 2023 · US
Armrest arrangement for a motor vehicle
US-11752910-B2 · Sep 12, 2023 · US
Damped door closer system and method
US-11680434-B1 · Jun 20, 2023 · US
Guide system for guiding a door leaf
US-11613922-B2 · Mar 28, 2023 · US
Modular add-on devices for door closers
US-11519212-B2 · Dec 6, 2022 · US
Armrest arrangement for a motor vehicle
US-2022371493-A1 · Nov 24, 2022 · US
Modular add-on devices for door closers
US-2022268072-A1 · Aug 25, 2022 · US
Work vehicle and system including work vehicle
US-2020181966-A1 · Jun 11, 2020 · US
Resin back door for vehicle
US-10661640-B2 · May 26, 2020 · US
Self regulating counterbalance mechanism with friction
US-2020123830-A1 · Apr 23, 2020 · US
Guide system for guiding a door leaf
US-2020018107-A1 · Jan 16, 2020 · US
Resin back door for vehicle
US-2019193534-A1 · Jun 27, 2019 · US
Automatically closing vehicle door
US-9822570-B2 · Nov 21, 2017 · US
Automatically closing vehicle door
US-2017284142-A1 · Oct 5, 2017 · US