Lamp filament having a pitch gradient and method of making
US-12198922-B2 · Jan 14, 2025 · US
characterised by the shape
characterised by the shape · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01K1/14 |
| Official title | characterised by the shape |
| Display label | characterised by the shape |
| Total patents | 38 |
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 |
| 2016 | 4 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 8 |
| 2020 | 3 |
| 2021 | 7 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Conical coil for rapid thermal anneal lamps
US-12027388-B2 · Jul 2, 2024 · US
Semiconductor processing chamber with filament lamps having nonuniform heat output
US-2024055279-A1 · Feb 15, 2024 · US
Image pickup unit and imaging apparatus
US-11895793-B2 · Feb 6, 2024 · US
Semiconductor processing chamber with filament lamps having nonuniform heat output
US-11842908-B2 · Dec 12, 2023 · US
Lamp filament having a pitch gradient and method of making
US-2023017852-A1 · Jan 19, 2023 · US
Image pickup unit and imaging apparatus
US-2021320142-A1 · Oct 14, 2021 · US
Thermal emission source
US-11112536-B2 · Sep 7, 2021 · US
Conical coil for rapid thermal anneal lamps
US-2021272822-A1 · Sep 2, 2021 · US
Multi-layered radiation light source
US-2021243858-A1 · Aug 5, 2021 · US
Semiconductor processing chamber with filament lamps having nonuniform heat output
US-2021225671-A1 · Jul 22, 2021 · US
Lamp infrared radiation profile control by lamp filament design and positioning
US-11057963-B2 · Jul 6, 2021 · US
Infrared device
US-10937643-B2 · Mar 2, 2021 · US
Microelectromechanical light emitter component, light emitter component and method for producing a microelectromechanical light emitter component
US-10748732-B2 · Aug 18, 2020 · US
Infrared device
US-2020234942-A1 · Jul 23, 2020 · US
Infrared radiating element
US-10707067-B2 · Jul 7, 2020 · US
Vehicle headlight with two filaments and mounting of such a lamp within a reflector
US-10443804-B2 · Oct 15, 2019 · US
Efficient mid-infrared sources
US-10438790-B2 · Oct 8, 2019 · US
Infrared heater
US-2019246457-A1 · Aug 8, 2019 · US
Infrared radiating element
US-2019206671-A1 · Jul 4, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01K1/14?
- CPC H01K1/14 is the Cooperative Patent Classification code for “characterised by the shape.”
- How many patents are filed under CPC H01K1/14 (characterised by the shape)?
- Our database includes 38 publications tagged with this CPC code.
- Is patent activity under CPC H01K1/14 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).