"after launched" is correct and usable in written English.
You could use it when referring to something that has been recently put into motion, either literally or metaphorically. For example: "The company has seen great success after launching their new product line."
Aquemini's first single got the band into trouble when the civil rights icon it was named after launched a lawsuit against them, claiming the record sought to trade off her name.
Leicester manager Nigel Pearson offered the best managerial rant of the season last night after his team lost 3-1 to Chelsea, after launched an attack on reporter Ian Baker, asking him whether he was "an ostrich" if his head was "flexible enough to get in the sand".
Matlin formed his own private equity firm, MatlinPatterson, in 2002 and soon after launched an investment in Huntsman that became legendary on Wall Street.
In September, Fritz Lanman led a $12 million Series A in September and Classpass soon after launched a mobile app.
After launched into an altitude of 600 km with 35° inclination, it circulates around the Earth every 97 min, transmitting collected data to Taiwan's receiving stations approximately six times a day.
Twitter turned off some of Meerkat's social graph access and soon after launched Periscope, which admittedly has a far superior design.
The center guides shuttle missions after launching.
Anderson achieved success and investment after launching his womenswear line.
The Cumbria Community Foundation Appeal hit £1m today, barely five days after launching.
After launching Working Title in 2013, the pair were exhausted.
But three years after launching the project, Btselem has seen another, unintended consequence.
