Melting method using multiple impacting flames
US-2025362085-A1 · Nov 27, 2025 · US
Heating elements or systems
Heating elements or systems · 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 | F27D99/0001 |
| Official title | {Heating elements or systems} |
| Display label | Heating elements or systems |
| Total patents | 66 |
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 | 5 |
| 2016 | 6 |
| 2017 | 7 |
| 2018 | 9 |
| 2019 | 9 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 5 |
| 2023 | 6 |
| 2024 | 3 |
| 2025 | 7 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Manufacturing line, process, and sintered article
US-2025251190-A1 · Aug 7, 2025 · US
Manufacturing line, process, and sintered article
US-12270604-B2 · Apr 8, 2025 · US
Manufacturing line, process, and sintered article
US-2024247868-A1 · Jul 25, 2024 · US
Manufacturing line, process, and sintered article
US-11953264-B2 · Apr 9, 2024 · US
Manufacturing line, process, and sintered article
US-2024019209-A1 · Jan 18, 2024 · US
Rotary Kiln
US-2023384032-A1 · Nov 30, 2023 · US
Systems and methods for non-contact tensioning of a metal strip
US-11821066-B2 · Nov 21, 2023 · US
Method of manufacturing ceramic tape
US-11768032-B2 · Sep 26, 2023 · US
Method of Manufacturing Ceramic Tape
US-2023204285-A1 · Jun 29, 2023 · US
Method of manufacturing ceramic tape
US-11629915-B2 · Apr 18, 2023 · US
Pre-ageing systems and methods using magnetic heating
US-2023002876-A1 · Jan 5, 2023 · US
Systems and methods for threading a hot coil on a mill
US-11499213-B2 · Nov 15, 2022 · US
Pre-ageing systems and methods using magnetic heating
US-11479837-B2 · Oct 25, 2022 · US
Systems and methods for threading a hot coil on a mill
US-11377721-B2 · Jul 5, 2022 · US
Sintering device and sintering method thereof
US-11280547-B2 · Mar 22, 2022 · US
Systems and methods for threading a hot coil on a mill
US-11242586-B2 · Feb 8, 2022 · US
Method of Manufacturing Ceramic Tape
US-2021402646-A1 · Dec 30, 2021 · US
Systems and methods for non-contact tensioning of a metal strip
US-2021310107-A1 · Oct 7, 2021 · US
Systems and methods for non-contact tensioning of a metal strip
US-11072843-B2 · Jul 27, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F27D99/0001?
- CPC F27D99/0001 is the Cooperative Patent Classification code for “Heating elements or systems.”
- How many patents are filed under CPC F27D99/0001 (Heating elements or systems)?
- Our database includes 66 publications tagged with this CPC code.
- Is patent activity under CPC F27D99/0001 growing?
- Publication counts under this code: 3 in 2024 vs 7 in 2025 (latest complete years).