Air purifier and air purification method
US-10948207-B2 · Mar 16, 2021 · US
Mechanical Engineering · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F24F2003/1614 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 56 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 6 |
| 2017 | 11 |
| 2018 | 13 |
| 2019 | 12 |
| 2020 | 11 |
| 2021 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-10948207-B2 · Mar 16, 2021 · US
US-10895402-B2 · Jan 19, 2021 · US
US-10837659-B2 · Nov 17, 2020 · US
US-10808950-B2 · Oct 20, 2020 · US
US-2020256585-A1 · Aug 13, 2020 · US
US-2020230539-A1 · Jul 23, 2020 · US
US-2020158357-A1 · May 21, 2020 · US
US-10639581-B2 · May 5, 2020 · US
US-10632411-B2 · Apr 28, 2020 · US
US-10583384-B2 · Mar 10, 2020 · US
US-2020063991-A1 · Feb 27, 2020 · US
US-2020016523-A1 · Jan 16, 2020 · US
US-10532307-B2 · Jan 14, 2020 · US
US-10514174-B2 · Dec 24, 2019 · US
US-10512872-B2 · Dec 24, 2019 · US
US-2019277517-A1 · Sep 12, 2019 · US
US-10344991-B2 · Jul 9, 2019 · US
US-10340157-B2 · Jul 2, 2019 · US
US-2019178510-A1 · Jun 13, 2019 · US
US-10281168-B2 · May 7, 2019 · US
Answers are generated from the same data shown on this page.