Blackhawks goalie Cristobal Huet makes a save despite San Jose's Patrick Marleau crashing into him. (Charles Cherney/Associated Press)

Cristobal Huet ended a personal losing skid while playing a huge part in helping the Chicago Blackhawks extend their unbeaten run on home ice.

With 15 seconds left in regulation, he kicked out his left leg to deny Scott Nichol, who unleashed a hard shot after skating between two Blackhawks following a poor line change by Chicago.

Huet then watched as his teammates were rewarded for some solid forechecking early in overtime. Jonathan Toews skated in front of the net and backhanded a pass to Brent Seabrook, who beat San Jose Sharks goalie Evgeni Nabokov 41 seconds into extra time to cement a seventh straight home win by the Blackhawks, 4-3 on Sunday night.

Chicago completed a 4-0 homestand — which also featured games against Colorado, Los Angeles and Toronto — and own the NHL's best home record at 10-2-1.

"We feel we can win any night, against any team," Seabrook said after notching his second goal of the season, both in OT. "We have a great group … and we want to prove that."

Huet entered the game with a 0-3-2 career record and 4.37 goals-against average against the Sharks. He stopped 20 shots for his seventh victory in his past nine starts.

After a slow start to the season, he has gone eight games without allowing more than three goals.

2nd-period outburst

Huet's latest attempt to snap the streak against San Jose appeared to be in jeopardy before the second period was two minutes old when rookie defenceman Jason Demers scored his first NHL goal and forward Patrick Marleau made it 3-1 just 45 seconds later.

Undaunted, Chicago fought back before the intermission on goals by Patrick Kane and John Madden. Kane extended his points streak to seven games during which he has three goals and nine points.

"Down two against a top team like that, you're not very often going to come back and get [the victory]," Blackhawks coach Joel Quenneville said. "You've got to take advantage of home ice. We've been pretty effective to date."

San Jose had two chances later in the period to regain its two-goal lead. At 13:43, a video review confirmed the puck didn't cross the goal-line after a scramble in front of Huet. About two minutes later, Marleau's shot hit the crossbar.

The 12-5-2 Blackhawks extended their longest winning streak since 2002 and closed to within six points of the Western Conference-leading Sharks (14-4-4).

The Sharks extended their streak of games with at least a point to 12 (9-0-3). They haven't had a regulation defeat since Oct. 22 at Tampa Bay, but Sunday's result came only three nights after a shootout loss to Dallas in which they also blew a two-goal lead.

"You've got to bear down, hold on to those games," Sharks centre Joe Pavelski said. "It is the second time in three games and maybe it's an issue, but I don't think so. We're pretty resilient."

Denied 13th win

Nabokov, who made 38 saves in Saturday's 3-1 win at St. Louis, failed to post his league-leading 13th win and remains tied with Buffalo's Ryan Miller and New Jersey's Martin Brodeur.

He also played a part in the opening goal Sunday as his giveaway led to a Brent Sopel shot from the point that found its way through a screen to the back of the Sharks' net at 4:08 of the opening period.

San Jose responded 11 minutes later after a nice pinch by Demers at the Chicago blue-line allowed Joe Thornton to set up Dany Heatley for his fourth goal in five contests and 14th overall goal in 22 games this season, tying him for the league lead. The former Ottawa Senator has at least a point in five straight games.

With the Blackhawks down 3-1, Kane outskated Devin Setoguchi to the Sharks net, took a pass from Toews and beat Nabokov high for his seventh goal of the season.

Madden then notched his first goal in 11 starts, firing the puck into an open net after Nabokov twice robbed a determined Andrew Ladd driving the net.

Prior to the game, the Blackhawks honoured nine-time all-star Jeremy Roenick, who scored 267 of his 513 NHL goals with Chicago, including back-to-back 50-goal campaigns in 1991-92 and 1992-93. He ended his playing career a year ago as a member of the Sharks.

With files from The Associated Press