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Licensed under the following United States patent:

U.S. Patent No. 8,522,127 (websites, mobile device applications)

 

 

May have previously been licensed under one or more of following United States patents now expired:

U.S. Patent No. 10,963,622 (email) (patent expired in 2021)

U.S. Patent No. 10,878,172 (email) (patent expired in 2021)

U.S. Patent No. 10,810,355 (ebooks) (patent expired in 2021)

U.S. Patent No. 10,102,184 (ebooks, mobile device applications) (patent expired in 2021)

U.S. Patent No. 9,892,093 (websites) (patent expired in 2021)

U.S. Patent No. 9,886,421 (mobile device applications) (patent expired in 2021)

U.S. Patent No. 9,405,735 (various) (patent expired in 2021)