Philips and Cree by one criterion hold the highest-quality LED patent portfolios, while Samsung and LG have the raw numbers. Intellectual property consultancy iRunway has issued a preliminary report surveying the ground of patents held by the top IP players in the LED domain, with an emphasis on lighting. The PDF is freely downloadable.
The majority of the 22,262 patents that iRunway identified were filed within the last five or 10 years. While the report breaks down the issued patents to three levels of categories, we will be looking at overall numbers. The important distinction we'll maintain is that between the total number of patents a company holds, and the number of "seminal" patents.
The table lists these overall numbers. The top 15 patent-holding organizations account for over 25% of all patents issued for LED technology and applications.
For the full story, see EETimes sister site All LED Lighting.
— Keith Dawson is the Editor in Chief of All LED Lighting.