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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
3D RADIO LLC	1715 COLUMBINE AVE BOULDER CO 80302

International Classification(s)

• H04N:PICTORIAL COMMUNICATION, e.g. TELEVISION
• H04B:TRANSMISSION
• H04W:WIRELESS COMMUNICATION NETWORKS
• H04H:BROADCAST COMMUNICATION

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Ellis, Michael D	Boulder, US	500	39047

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Apr 21, 2026

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
October 21, 2014	US,8868023,B2   US8868023B2	GRANTED PATENT AS SECOND PUBLICATION
July 16, 2009	US,20090180579,A1   US20090180579A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8868023

Digital radio systems and methods

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