Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9122703 | Hierarchical category index navigational system | Zhiying Jin, Fenglin Yin, Sharon Marie Walker, Jennifer Logan Stelling, David A. Philbin +3 more | 2015-09-01 |
| 8346751 | Hierarchial category index navigational system | Zhiying Jin, Fenglin Yin, Sharon Marie Walker, Jennifer Logan Stelling, David A. Philbin +3 more | 2013-01-01 |
| 8271539 | Hierarchy modification | — | 2012-09-18 |
| 8065339 | Hierarchy modification | — | 2011-11-22 |
| 7657547 | Hierarchy modification | — | 2010-02-02 |