As the number of patent applications is a
good measure of innovation activities, to evaluate the WPAN (Bluetooth
including Bluetooth LE and Zigbee) technology innovation activities, more than
2000 issued patents in the USPTO obtained from the carefully constructed keyword
search are reviewed. Patent disclosures
in claims and detail description for each patent are analyzed as to whether the
contents are within the scope of key technologies (e.g. modulation &
coding, PHY & MAC frames & functions, Link Management etc.) for the
IEEE 802.15.1, IEEE 802.15.4 and Bluetooth Core 2 – 4 standard specifications.
More than 290 issued patents are identified
as the key patents for the IEEE 802.15.1, IEEE 802.15.4 and Bluetooth Core 2 – 4
standard specifications as of 1Q 2015. Among 82 IPR holders, Broadcom is the
leader followed by Samsung Electronics, Nokia, Qualcomm, Texas Instruments,
Philips, Ericsson, Intel, BlackBerry, ETRI and Sony.
For more information, please contact Alex Lee
at alexglee@techipm.com .
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