Football helmet with recessed face guard mounting areas
US-10506841-B2 · Dec 17, 2019 · US
Air inlets or outlets, with or without closure shutters
Air inlets or outlets, with or without closure shutters · 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 | A42B3/283 |
| Official title | {Air inlets or outlets, with or without closure shutters} |
| Display label | Air inlets or outlets, with or without closure shutters |
| Total patents | 195 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 8 |
| 2017 | 20 |
| 2018 | 22 |
| 2019 | 23 |
| 2020 | 23 |
| 2021 | 22 |
| 2022 | 17 |
| 2023 | 18 |
| 2024 | 13 |
| 2025 | 21 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Protective bicycle helmet with internal ventilation fit system comprising expanded connectors
US-2019343215-A1 · Nov 14, 2019 · US
Protective helmet with multiple energy management liners
US-10463099-B2 · Nov 5, 2019 · US
Helmet goggle strap holder
US-2019239591-A1 · Aug 8, 2019 · US
Helmet with airflow ventilation through an earpad
US-2019045874-A1 · Feb 14, 2019 · US
Time trial bicycle helmet with ear shield
US-10188167-B2 · Jan 29, 2019 · US
Helmet with floating shell plates
US-2018343953-A1 · Dec 6, 2018 · US
Protective headwear with airflow
US-2018325205-A1 · Nov 15, 2018 · US
Multi-body helmet construction and strap attachment method
US-2018325204-A1 · Nov 15, 2018 · US
Truncated helmet
US-2018317588-A1 · Nov 8, 2018 · US
Catcher's helmet with face guard having raised eyebrow areas
US-2018303188-A1 · Oct 25, 2018 · US
Helmet with airflow ventilation through an earpad
US-10098407-B2 · Oct 16, 2018 · US
Catcher's helmet with face guard having raised eyebrow areas
US-10085509-B2 · Oct 2, 2018 · US
Protective headwear with airflow
US-2018263820-A1 · Sep 20, 2018 · US
Helmet goggle strap holder
US-2018220731-A1 · Aug 9, 2018 · US
Helmet comprising a segmented shell
US-2018206584-A1 · Jul 26, 2018 · US
Multi-body helmet construction and strap attachment method
US-10016007-B2 · Jul 10, 2018 · US
Protective helmet with integrated rotational limiter
US-10010126-B1 · Jul 3, 2018 · US
Ergonomic occipital triangular cushion pad for head bands
US-2018177259-A1 · Jun 28, 2018 · US
Protective headwear with airflow
US-9999546-B2 · Jun 19, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC A42B3/283?
- CPC A42B3/283 is the Cooperative Patent Classification code for “Air inlets or outlets, with or without closure shutters.”
- How many patents are filed under CPC A42B3/283 (Air inlets or outlets, with or without closure shutters)?
- Our database includes 195 publications tagged with this CPC code.
- Is patent activity under CPC A42B3/283 growing?
- Publication counts under this code: 13 in 2024 vs 21 in 2025 (latest complete years).