Assessment of Viability for CRS Electronics Fixtures
Several companies have heavily patented the use of remote phosphors in lighting applications. Most of these patents are broad enough to cover any LED use of phosphors. Additionally there are numerous application-specific patents out there by a wide range of companies. LEDs Magazine has a good overview article on the patent landscape for remote phosphors here. Cree is asserting a patent on remote phosphor based LED luminaires and bulbs, the rights to which are not automatically granted with the purchase of Cree royal blue LEDs. Cree’s licensing program is detailed here. Intematix is also asserting rights to a number of patents on remote phosphor designs, their list of patents and patent applications can be found here. It appears that use of the Intematix Chromalit line of remote phosphor products includes right-to-use, and that Intematix will provide legal defense in event of a lawsuit based on rights to the remote phosphor technology. It is not clear whether this support is provided for use of raw phosphors coated by CRS Electronics. CRS Electronics will need to ensure that it carries out a patent search and assesses right-to-use prior to product launch for any remote phosphor application.