CPC Subclass Not Allocatable
F21Y INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
Description
F21Y is an indexing classification used to supplement and cross-reference documents related to light sources and light emission characteristics within the F21 lighting branch. It organizes patents by specific attributes such as the physical form of light sources (incandescent, fluorescent, LED, laser) and the color or spectral properties of emitted light. This classification facilitates retrieval and grouping of related technologies that share common source types or light characteristics across multiple primary lighting subclasses. F21Y does not independently classify inventions but serves as an auxiliary tool for systematic indexing and patent family navigation in the lighting field.
8 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- F21Y 2101/00 Point-like light sources
- F21Y 2103/00 Elongate light sources, e.g. fluorescent tubes
- F21Y 2105/00 Planar light sources
- F21Y 2107/00 Light sources with three-dimensionally disposed light-generating elements
- F21Y 2109/00 Light sources with light-generating elements disposed on transparent or translucent supports or substrates
- F21Y 2111/00 Light sources of a form not covered by groups F21Y2101/00-F21Y2107/00
- F21Y 2113/00 Combination of light sources
- F21Y 2115/00 Light-generating elements of semiconductor light sources