Using the Innography, which is a business intelligent solution for IP management (http://www.innography.com/), the patent portfolios for Zigbee (IEEE 802.15.3) 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 Zigbee are as follows:
Samsung (123), Philips (70), Broadcom (50), Motorola (40), Samsung Electro-Mechanics (35), Eaton (20), and ETRI (19).
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 Zigbee, Samsung and Philips form a leader group in portfolio management capability.
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