Do you have any errors while application of patches ? Any steps missed ? Check again.
Try to do recompile jsp and clearing cookies/cache on clients ?
Any errors messages in apahce logs
I would recommend clearing global cache from Functional Administrator responsibility and then bounce Application tier web services and try to reload the same login page in new browser session.
Let me know if this works for you.
No errors during these patches.
recompiled JSP didnt work.
cleared cache on server, cabo, using functional admin ... none of these worked.