|
|
United States Patent and Trademark Office
|
9
|
2001-11-20
|
|
|
details
|
RIVERDEEP LEARNING VILLAGE
|
|
United States Patent and Trademark Office
|
41, 42
|
2005-10-04
|
2016-05-06
|
historic |
details
|
EDVANTAGE
|
|
United States Patent and Trademark Office
|
9
|
2002-01-01
|
2008-10-04
|
historic |
details
|
RIVERDEEP INTERACTIVE LEARNING
|
|
United States Patent and Trademark Office
|
41
|
2001-07-17
|
2008-04-19
|
historic |
details
|
TOUCHFREE
|
|
United States Patent and Trademark Office
|
9
|
2001-07-17
|
2008-04-19
|
historic |
details
|
RIVERDEEP INTERACTIVE LEARNING
|
|
United States Patent and Trademark Office
|
9
|
2001-07-03
|
2008-04-04
|
historic |
details
|