In the context of trademark law, unfair competition is the general category under which trademark infringement falls that deals with any action that causes financial or economic injury to a business or individual through unfair acts.
When considering this in regard to trademark and general intellectual property law, unfair competition is similar to trademark infringement but deals with a different portion of the Lanham Act (15 U.S.C. § 1125), which states that passing off one’s goods or services as your own is deceptive and otherwise financially damaging to the rightful owner of the mark.
Normally this claim is made part-and-parcel with some other sort of IP infringement (usually trademark). Whether it is asserting this type of claim or responding to this type of claim, the attorneys at MG Miller would be happy to assist.