On 15 October 2002, Patterson was loaned to non-league Slough Town for a period of one month before returning to Vicarage Road. Later that season he had a loan spell with Wycombe Wanderers, scoring twice in four Division Two fixtures.
In October 2002, Patterson was temporarily transferred to Slough Town for a month before reverting back to Vicarage Road. He then made a brief appearance at Wycombe Wanderers later that season, netting two goals in four Division Two games.