Patent foundation: "As of December 31, 2008, we have more than 735 U.S. and foreign patents on various aspects of our technology, with expiration dates ranging from 2010 to 2026, and we have approximately 500 pending patent applications."
Customer concentration: "We have a high degree of revenue concentration, with our top five licensees representing approximately 67%, 67% and 63% of our revenue for the years ended December 31, 2008, 2007 and 2006, respectively. For the year ended December 31, 2008, revenue from Fujitsu, NEC, Panasonic, Sony, Elpida and AMD each accounted for 10% or more of our total revenue."
Royalty revenue by technology:
- "In the years ended December 31, 2008, 2007 and 2006, our largest source of royalties was related to the license of our patents for SDR and DDR-compatible products. Royalties decreased approximately $32.5 million for SDR and DDR-compatible products to $100.5 million for the year ended December 31, 2008 from $133.0 million for the same period in 2007.
- In the year ended December 31, 2008 and 2007, royalties from XDR, FlexIO, DDR and serial link-compatible products represented the second largest category of royalties. Royalties from these products increased approximately $5.4 million to $21.8 million for the year ended December 31, 2008 from $16.4 million for the same period in 2007.
- In the years ended December 31, 2008 and 2007, royalties from RDRAM-compatible products represented the third largest source of royalties. Royalties from RDRAM memory chips and controllers decreased $0.3 million to $4.6 million for the year ended December 31, 2008 from $4.9 million for the same period in 2007."