Production of iron
US-12509745-B2 · Dec 30, 2025 · US
Microwave heating
Microwave heating · 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 | F27D2099/0028 |
| Official title | {Microwave heating} |
| Display label | Microwave heating |
| Total patents | 35 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 2 |
| 2022 | 3 |
| 2023 | 7 |
| 2024 | 3 |
| 2025 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Tube module and tube assembly including same
US-12455116-B2 · Oct 28, 2025 · US
Biomass direct reduced iron
US-2025179596-A1 · Jun 5, 2025 · US
Method for producing coated ceramic and firing furnace for carrying out said method
US-2025154074-A1 · May 15, 2025 · US
Rotary microwave apparatus
US-2025137721-A1 · May 1, 2025 · US
Microwave firing apparatus
US-2025142691-A1 · May 1, 2025 · US
Apparatus and methods for sintering
US-12257629-B2 · Mar 25, 2025 · US
Production of iron
US-11959153-B2 · Apr 16, 2024 · US
Microwave heating unit and method for producing carbon fiber using the same
US-2024117531-A1 · Apr 11, 2024 · US
Continuous operation method for microwave high-temperature pyrolysis of solid material comprising organic matter
US-11926794-B2 · Mar 12, 2024 · US
Biomass direct reduced iron
US-2023407423-A1 · Dec 21, 2023 · US
Rotary Kiln
US-2023384032-A1 · Nov 30, 2023 · US
Biomass Direct Reduced Iron
US-2023366051-A1 · Nov 16, 2023 · US
Apparatus and methods for sintering
US-2023234127-A1 · Jul 27, 2023 · US
Tube Module and Tube Assembly Including Same
US-2023213281-A1 · Jul 6, 2023 · US
Production of Iron
US-2023002853-A1 · Jan 5, 2023 · US
Production of Iron
US-2023002852-A1 · Jan 5, 2023 · US
Production of iron
US-11479829-B2 · Oct 25, 2022 · US
Microwave furnace and a method of sintering
US-11435142-B2 · Sep 6, 2022 · US
Continuous Operation Method for Microwave High-Temperature Pyrolysis of Solid Material Comprising Organic Matter
US-2022010216-A1 · Jan 13, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F27D2099/0028?
- CPC F27D2099/0028 is the Cooperative Patent Classification code for “Microwave heating.”
- How many patents are filed under CPC F27D2099/0028 (Microwave heating)?
- Our database includes 35 publications tagged with this CPC code.
- Is patent activity under CPC F27D2099/0028 growing?
- Publication counts under this code: 3 in 2024 vs 7 in 2025 (latest complete years).