5项专利啊,我x,微软技术真牛x啊
1)System provided child window controls: 专利号5,889,522
2)Remote retrieval and display management of electronic document
with incorporated images: 专利号5,778,372
3)Loading status in a hypermedia browser having a limited
available display area: 专利号6,339,780
4)Selection handles in editing electronic documents:专利号6,891,551
5)Method and apparatus for capturing and rendering annotations
for non-modifiable electronic content: 专利号6,957,233