History is littered with companies that have been forced to change their names because somebody else got there first. The most recent high profile case was The World Wrestling Federation attempting to wrestle the name WWF off the World Wildlife Fund. However, they are not very good at wrestling, and they lost.
There have been tens of other examples throughout corporate history, and in general the big boys have won. When Kettering Football Club attempted to establish themselves as a brand, a certain fast food emporium came crashing down on them hard, threatening the then non-league soccer club with what would have been a financial death blow, in the end, they capitulated and became Kettering Town FC, or KTFC.
When ballistic missiles first went intercontinental, they were called IBMs, something a certain computer company did not like at all. And when the EU wanted a standardised Car Assessment Program, they tried CAP, NCAP and NCP all of which landed them in hot water. Tagging the word European at the front to become ENCAP gave them a bit of leverage, as the current owners of the name were broke.
Queens Veterinary Corporation had existed for nearly a hundred years when an upstart TV channel moved in and stole their name using legal muscle Quentin Queen couldn't match, whilst the same happened to Harold's Motor Vehicles and English Matchsticks Incorporated.
There is some good news, however. Mopping Floors International can finally have their abbreviation back, now that the furniture store has folded.