I decided to take a look at the highest number of applications filed based on state residency. Here are the top 6 out of the 310,296 applications filed by residents of the US:
Now let's take a look at these same states to see how many made it to registration. This represents a portion of the 122,266 applications registered to residents of the US. Of course, there's going to be some rollover from those filed in 2006/registered in 2007 and those filed in 2007/registered in 2008 but this gives a pretty fair snapshot:
It still boggles my mind that such a large number of trademark applications are filed that NEVER make it to registration. This is why we always stress to our clients to stay on top of their trademark filings. The USPTO will not keep watch of your trademark; that's your responsibility. Also ensuring that the name is available in the first place will get you past the dreaded refusal Office Action.