It appears as though Microsoft wasn't the only one filing lawsuits lately. Information now shows that on March 18 Apple laid the groundwork to put a stop to Amazon's usage of the words "App Store" citing trademark infringement and unfair competition as their reasoning. To go along with the filing, Apple has asked the courts to disallow any further use by Amazon of the words "App Store" and is seeking unspecified damages.

“Amazon began improperly using Apple’s App Store mark in connection with Amazon’s mobile software developer program.” In addition to that “Amazon has unlawfully used the App Store mark to solicit software developers throughout the United States.”

Apple spokeswoman Kristin Huguet stated “We’ve asked Amazon not to copy the App Store name because it will confuse and mislead customers." While Apple had reached out to Amazon before filing, Amazon never came back with a satisfactory response.

Given that the U.S. Patent and Trademark Office granted Apple the rights to the "App Store" mark they do have a lot of legal weight behind them for their case, but -- Microsoft is already appealed the ruling and if Amazon joins this fight as well Apple may very well have to give it up. Time will tell of course, but we don't expect this one to just blow over right away with everyone hugging it out. It's going to be a drawn out battle. [Bloomberg]