Example: ul > li will match all <li> elements that are inside a <ul> element. Descendant selectors. The ' ' combinator selects nodes that are children (not necessary direct children) of the former specified element. Example: div span will match any <span> element that is inside a <div> element.
Generic Firazyr. Because a patent is in place until  July 2014, companies are currently not allowed to make a generic version of Firazyr (icatibant). However, after this patent expires, a generic product may become available.
On the other hand, if the patent application filing date was on or before June 8, 1995, the nominal expiration date is the longer of 17 years from the date of issue or 20 years from the earliest non-provisional priority claim. Usually, but not always, the priority claim is listed on the front page of the patent.