Just did some digging around on the LA Secretary of State website.
For what it's worth, in addition to "The New Orleans Louisiana Angles, LLC" there is also a listing for "The Angels of New Orleans, Louisiana & Logo." Both are registered in Metairie. Neither have "details" available yet, which leads me to believe that both are very recent reserved names.
Also, I couldn't find an entry for "The New Orleans Louisiana Spirit, LLC," but did find one for "The Spirit of New Orleans, Louisiana & Logo." As with the Angels entry, it was registered in Metairie and lacks available "details."
I'll keep digging to see if other names pop up.
EDIT: I fiddled with the search terms and was able to find "New Orleans Louisiana Spirit, LLC." I'm not sure why it only showed up when I searched "New Orleans Louisiana, LLC." It too is registered in Metry and appears new.
Other fun facts I've learned:
Benson's trademark on the Pelicans expires on May 18, 2012.
Someone named Roy J Rodney, Jr., re-registered what seems to be the old New Orleans Brass logo in April 2012. From the description it looks like he is just going to be making shirts/hats with it.