Both have been a little quiet of late, but Bent's brace and Kuqi's cool finish sealed yet another win at Portman Road for the hosts against a spirited Coventry side.
The visitors battled hard throughout, went in front through Stern John and levelled at 2-2 with a Gary McSheffrey penalty, but Kuqi had the final word 13 minutes from time.
Coventry made a lively start, with Adrian Williams scuffing wide from a Stephen Hughes corner, before Ipswich started to get into gear and Kuqi fired wide after a loose ball dropped to him in the box.
City went ahead on 12 minutes when Dean Leacock robbed Danny Karbassiyoon and slid the ball through for John to coolly round Kelvin Davis and fire home.
Darren Currie's curling free-kick was well gathered by Luke Steele as it just cleared two Ipswich players, before Fabian Wilnis burst through but shot weakly at Steele.
Kuqi and McSheffrey blazed over at either end, Bent fired over from a Kuqi flick and then Steele gathered another curling Currie free-kick as Ipswich pushed for an equaliser.
They got it in stoppage time when Jason De Vos, up from the back for a long throw, laid the ball back to Wilnis and his first-time cross was stabbed in at the far post by Bent.
Davis made a good save to deny McSheffrey at the end of a weaving run early in the second half, before Bent struck his 13th of the season, latching on to a clever Jim Magilton ball behind Richard Shaw and hooking his shot in off the post.
Coventry were level though just two minutes later. Davis palmed away a McSheffrey shot from a Hughes pass but Kuqi handled the ensuing corner and McSheffrey confidently sent Davis the wrong way from the penalty spot.
Kuqi atoned for his moment of madness back in defence when a Davis clearance bypassed everyone and ran through for the Finnish international to run on and fire home his 13th of the season to settle the match.