Lamp filament having a pitch gradient and method of making
US-12198922-B2 · Jan 14, 2025 · US
Lamps for purposes other than general lighting (H01K9/00 - H01K13/00 take precedence)
Lamps for purposes other than general lighting (H01K9/00 - H01K13/00 take precedence) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01K7/00 |
| Official title | Lamps for purposes other than general lighting (H01K9/00 - H01K13/00 take precedence) |
| Display label | Lamps for purposes other than general lighting (H01K9/00 - H01K13/00 take precedence) |
| Total patents | 28 |
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 | 2 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 4 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
High power tungsten halogen lamp lifetime improvement through J-hook design
US-12148607-B2 · Nov 19, 2024 · US
Epi thermal profile tuning with lamp radiation shields
US-2024363327-A1 · Oct 31, 2024 · US
High power tungsten halogen lamp lifetime improvement through j-hook design
US-2024162030-A1 · May 16, 2024 · US
Semiconductor processing chamber with filament lamps having nonuniform heat output
US-2024055279-A1 · Feb 15, 2024 · US
High power tungsten halogen lamp lifetime improvement through J-hook design
US-11881392-B2 · Jan 23, 2024 · US
Semiconductor processing chamber with filament lamps having nonuniform heat output
US-11842908-B2 · Dec 12, 2023 · US
High power tungsten halogen lamp lifetime improvement through j-hook design
US-2023377870-A1 · Nov 23, 2023 · US
Device and method for generating radiation
US-11651951-B2 · May 16, 2023 · US
Device and method for generating radiation
US-2023030256-A1 · Feb 2, 2023 · US
Lamp filament having a pitch gradient and method of making
US-2023017852-A1 · Jan 19, 2023 · 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
Infrared device
US-2020234942-A1 · Jul 23, 2020 · US
Light-emitting device and light source apparatus
US-10651027-B2 · May 12, 2020 · US
Light-emitting device and light source apparatus
US-2020020519-A1 · Jan 16, 2020 · US
Efficient mid-infrared sources
US-10438790-B2 · Oct 8, 2019 · US
Tungsten-halogen electromagnetic radiation optical systems source
US-10274366-B2 · Apr 30, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01K7/00?
- CPC H01K7/00 is the Cooperative Patent Classification code for “Lamps for purposes other than general lighting (H01K9/00 - H01K13/00 take precedence).”
- How many patents are filed under CPC H01K7/00 (Lamps for purposes other than general lighting (H01K9/00 - H01K13/00 take precedence))?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC H01K7/00 growing?
- Publication counts under this code: 5 in 2024 vs 1 in 2025 (latest complete years).