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.
Copyright will last for your life plus 70 years; a design patent lasts for 14 years (15 years for applications filed on or after May 13, 2015. In addition, there are many rules for design patents that could disqualify it as an option for you.