Video game maker Atari Inc. is seeking court approval for the sale of all its assets as it works its way out of bankruptcy protection, Reuters reported yesterday. The company said on Tuesday that it tried looking for a buyer with the help of its investment banker Perella Weinberg Partners, but was unable to find a stalking-horse bid acceptable to it. Atari has set a minimum bid of $15 million for the Atari brand. The company received a $5 million debtor-in-possession financing from Alden Global Value Recovery Master Fund LP.