A Singapore court has upheld the right of an Australian-owned hotel to use the Park Regis brand in the city state, throwing out a ban sought by the St. Regis chain, court documents showed on Tuesday. St. Regis, a luxury brand under the US-based Starwood group of hotels and resorts, had applied to Singapore's Registrar of Trade Marks to stop Park Regis from getting its trademark in the city. But the Park...