Joe Thornton added two assists for the Sharks, whose streak equals the team's run from April 3-15, 2006. San Jose also won its sixth straight on the road, tying a team high. The Sharks have the NHL's best road record at 23-8-3.
Brent Seabrook and Jonathan Toews scored for the Blackhawks, whose three-game winning streak ended. Chicago is 8-4-0 in its last 12.
Seabrook's power-play goal opened the scoring 3:35 in. He pinched to the edge of the crease and swatted in a rebound of Patrick Sharp's shot.
Cheechoo tied it at 1 17 seconds later. From the front of the net, he chopped in Thornton's centering pass from behind the net.
McLaren gave the Sharks a 2-1 lead at with 7:15 left in the first when he skated down the slot and converted Thornton's feed from behind the net.
Toews tied it with 1:51 remaining in the period when he deflected in Duncan Keith's drive from the left point.
Marleau's goal with 5:29 left in the second, his fourth in three games, gave San Jose a 3-2 lead. After gaining a step on Seabrook, he snapped a shot from the left circle that beat Patrick Lalime under the blocker.
Lalime, normally Chicago's backup, made 20 saves in his seventh start in eight games. Chicago's No. 1 goalie, Nikolai Khabibulin, missed his eight straight game with back spasms.
An apparent tying goal by Chicago's Rene Bourque with 31.2 seconds left in the third period was disallowed. Bourque redirected a shot by Dustin Byfuglein into the net with his glove.
The Blackhawks' loss came on a night when the team saluted Hall of Famers Bobby Hull and Stan Mikita, probably the biggest players in the team's history, in a ceremony before the game.
