Using the Innography, which is a business intelligent solution for IP management (http://www.innography.com/), the patent portfolios for IEEE 802.11n wireless LAN technologies are analyzed. To find the key IPR (issued patents and published applications) holders and their patent portfolios, semantic method is used for the keyword searching of the global patent data bases (USPTO, EPO, JIPO, KIPO, CIPO, WPO etc.)
As of Oct. 20 2009, the key IPR holders and their IPR shares for IEEE 802.11n WLAN are as follows:
Broadcom (244), Intel (227), Nokia (171), Samsung (134), Apple Computer (85), Marvell World Trad (72), InterDigital (71), RIM (69), Toshiba (64), Qualcomm (60), Sony (46), and TI (44).
Using the identified key IPR holders' patents, patent portfolios are compared with respect to portfolio quality measures (citations, number of patents, and technology coverage) and portfolio utilization measures (revenue, global families, and litigation information).
As for the IEEE 802.11n WLAN, Broadcom, Intel, Nokia, and Samsung form a leader group in portfolio management capability.
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