The ABM University Health Board said it investigated and identified shortcomings following Mr Ridd's death and swiftly took action to make improvements.
At the end of the two-day hearing, Mr Ridd's sister Jane Nicholls wept as Swansea coroner Philip Rogers ruled that the hospital's neglect had contributed to his death.
She conceded that suction to Mr Ridd's lungs, which doctors had said should have happened every two to four hours, occurred only three times in total during a stay of nearly three days in the ward.
He told the coroner's court that there had been catalogue of errors in Mr Ridd's treatment, a gross failure to provide adequate medical care and a clear connection in the way he was treated and the cause of his death.