Microwave enhancement of exhaust aftertreatment systems
US-11603786-B1 · Mar 14, 2023 · US
using microwaves
using microwaves · 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 | F01N3/028 |
| Official title | using microwaves |
| Display label | using microwaves |
| Total patents | 30 |
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 | 3 |
| 2017 | 4 |
| 2018 | 7 |
| 2019 | 6 |
| 2020 | 8 |
| 2021 | 1 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Control device for internal combustion engine
US-11085341-B2 · Aug 10, 2021 · US
Microwave irradiation device, exhaust purification apparatus, automobile and management system
US-10876458-B2 · Dec 29, 2020 · US
Control device for internal combustion engine
US-2020400053-A1 · Dec 24, 2020 · US
Exhaust gas purification system for internal combustion engine
US-10871094-B2 · Dec 22, 2020 · US
Fine particle detector and exhaust gas purification apparatus
US-10850221-B2 · Dec 1, 2020 · US
Microwave irradiation apparatus and exhaust gas purification apparatus
US-10603617-B2 · Mar 31, 2020 · US
Microwave heating apparatus and exhaust gas purification apparatus
US-10577992-B2 · Mar 3, 2020 · US
Exhaust purification device, internal combustion device, and power generation device
US-10576406-B2 · Mar 3, 2020 · US
Filter regeneration device, filter plugging detection device, exhaust gas treatment apparatus, and filter plugging determination method
US-10526944-B2 · Jan 7, 2020 · US
Catalyst heating device and heating device
US-2019381455-A1 · Dec 19, 2019 · US
Plasma reactor
US-10450916-B2 · Oct 22, 2019 · US
Exhaust gas purification system for internal combustion engine
US-2019292957-A1 · Sep 26, 2019 · US
Microwave applicator, exhaust gas purifier, heater, and chemical reactor
US-10301989-B2 · May 28, 2019 · US
Particulate filter and exhaust gas purifier
US-10221739-B2 · Mar 5, 2019 · US
Plasma reactor
US-2019055869-A1 · Feb 21, 2019 · US
Fine particle detector and exhaust gas purification apparatus
US-2018347422-A1 · Dec 6, 2018 · US
Exhaust purification device, internal combustion device, and power generation device
US-2018280856-A1 · Oct 4, 2018 · US
Exhaust purification apparatus, automobile, and management system
US-2018258809-A1 · Sep 13, 2018 · US
Microwave irradiation device, exhaust purification apparatus, automobile and management system
US-2018258820-A1 · Sep 13, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01N3/028?
- CPC F01N3/028 is the Cooperative Patent Classification code for “using microwaves.”
- How many patents are filed under CPC F01N3/028 (using microwaves)?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC F01N3/028 growing?
- Publication counts under this code: 1 in 2021 vs 1 in 2023 (latest complete years).