Lighting device
US-9528693-B2 · Dec 27, 2016 · US
characterised by the material (liquid coolants F21V29/56)
characterised by the material (liquid coolants F21V29/56) · 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 | F21V29/85 |
| Official title | characterised by the material (liquid coolants F21V29/56) |
| Display label | characterised by the material (liquid coolants F21V29/56) |
| Total patents | 268 |
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 | 38 |
| 2016 | 38 |
| 2017 | 45 |
| 2018 | 36 |
| 2019 | 42 |
| 2020 | 26 |
| 2021 | 20 |
| 2022 | 10 |
| 2023 | 2 |
| 2024 | 8 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
LED lamp incorporating remote phosphor with heat dissipation features
US-9500325-B2 · Nov 22, 2016 · US
Light emitting diode troffer door assembly
US-9494286-B2 · Nov 15, 2016 · US
Arrangement of a heat sink and heat-generating electronic components housed thereon
US-9470410-B2 · Oct 18, 2016 · US
Illumination unit, projection display unit, and direct view display unit
US-2016301899-A1 · Oct 13, 2016 · US
Low profile luminaire and associated systems and methods
US-9435930-B2 · Sep 6, 2016 · US
Light-emitting module and lamp using same
US-9423118-B2 · Aug 23, 2016 · US
Lighting device
US-2016223142-A1 · Aug 4, 2016 · US
Illumination apparatus
US-2016209023-A1 · Jul 21, 2016 · US
Gas cooled LED lamp
US-9395051-B2 · Jul 19, 2016 · US
Light source apparatus and projection type display apparatus
US-9388972-B2 · Jul 12, 2016 · US
Led unit
US-2016178186-A1 · Jun 23, 2016 · US
Illumination unit, projection display unit, and direct view display unit
US-9374564-B2 · Jun 21, 2016 · US
Gas cooled LED lamp
US-9353937-B2 · May 31, 2016 · US
LED light fixture
US-9335041-B2 · May 10, 2016 · US
High reflectance polycarbonate
US-9315675-B2 · Apr 19, 2016 · US
Tubular integrated light emitting diode (LED) lamp housing having a heat radiation section and a light transmission section and method for making the same
US-9283703-B2 · Mar 15, 2016 · US
Light Source Unit, Optical Conversion Unit, Light Source Apparatus and Light Source System for an Endoscope
US-2016054558-A1 · Feb 25, 2016 · US
Illumination apparatus
US-2016047524-A1 · Feb 18, 2016 · US
Lamp with an overheat protection device
US-2016025323-A1 · Jan 28, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F21V29/85?
- CPC F21V29/85 is the Cooperative Patent Classification code for “characterised by the material (liquid coolants F21V29/56).”
- How many patents are filed under CPC F21V29/85 (characterised by the material (liquid coolants F21V29/56))?
- Our database includes 268 publications tagged with this CPC code.
- Is patent activity under CPC F21V29/85 growing?
- Publication counts under this code: 8 in 2024 vs 2 in 2025 (latest complete years).