Fastener structure
US-2018335065-A1 · Nov 22, 2018 · US
Releasable fastening devices with a stud engaging a keyhole slot
Releasable fastening devices with a stud engaging a keyhole slot · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F16B21/09 |
| Official title | Releasable fastening devices with a stud engaging a keyhole slot |
| Display label | Releasable fastening devices with a stud engaging a keyhole slot |
| Total patents | 279 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 19 |
| 2016 | 18 |
| 2017 | 16 |
| 2018 | 25 |
| 2019 | 30 |
| 2020 | 38 |
| 2021 | 28 |
| 2022 | 24 |
| 2023 | 26 |
| 2024 | 23 |
| 2025 | 25 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Flexible mounting system for hand hygiene dispensers
US-2018317717-A1 · Nov 8, 2018 · US
Installation mechanism of LED lighting
US-10082276-B2 · Sep 25, 2018 · US
Assembly component incorporating multi-step doghouse
US-10017129-B2 · Jul 10, 2018 · US
Fastener locating and retention design to accommodate part expansion and contraction
US-2018087553-A1 · Mar 29, 2018 · US
Printing device provided with abutting part for suppressing cover from opening due to impact from fall
US-2018072079-A1 · Mar 15, 2018 · US
Lighting fixture mounting systems
US-2018003367-A1 · Jan 4, 2018 · US
Installation mechanism of led lighting
US-2017370559-A1 · Dec 28, 2017 · US
Fastener for fastening a panel to a support and assembly to fasten to said support, provided with a fastener and a panel
US-9845061-B2 · Dec 19, 2017 · US
Sidewall mounting hardware for aircraft
US-2017291676-A1 · Oct 12, 2017 · US
Clipwave System
US-2017268557-A1 · Sep 21, 2017 · US
Fastening device and method for fastening an element in a keyhole-shaped cutout in a wall
US-9746016-B2 · Aug 29, 2017 · US
Advanced clip retainer
US-9739298-B2 · Aug 22, 2017 · US
Engine inlet duct installation
US-9708979-B2 · Jul 18, 2017 · US
Releasable connection interface for a fiber optic component holder
US-9684143-B2 · Jun 20, 2017 · US
Low profile push on metal doghouse
US-9656613-B2 · May 23, 2017 · US
Fastening device and method for fastening an element in a keyhole-shaped cutout in a wall
US-9657764-B2 · May 23, 2017 · US
Fastener system
US-9638233-B1 · May 2, 2017 · US
Fastener system
US-2017114817-A1 · Apr 27, 2017 · US
Fastening member and device having the same
US-9631654-B2 · Apr 25, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16B21/09?
- CPC F16B21/09 is the Cooperative Patent Classification code for “Releasable fastening devices with a stud engaging a keyhole slot.”
- How many patents are filed under CPC F16B21/09 (Releasable fastening devices with a stud engaging a keyhole slot)?
- Our database includes 279 publications tagged with this CPC code.
- Is patent activity under CPC F16B21/09 growing?
- Publication counts under this code: 23 in 2024 vs 25 in 2025 (latest complete years).