Erik Karlsson scored, Nico Sturm had two assists, and Kaapo Kahkonen made 32 saves for the Sharks (18-30-12), who are 1-2-1 during a season-long seven-game homestand.
"I thought we played well," San Jose coach David Quinn said. "Good pace, good tempo. The penalty situation wasn't in our favor (four power plays for Chicago, one for San Jose), which was frustrating."
The Sharks
retired the No. 12 of former forward Patrick Marleau
in a pregame ceremony, the first retired number in their history. Marleau, who ranks first in NHL history in games played (1,779), played 21 seasons for San Jose and is its all-time leader in a number of categories, including games played (1,607), goals (522) and points (1,111).
"It's a night I'll never forget," Quinn said. "Even if you don't know him, there were moments we all got a little emotional for that man. It was a special night."
Max Domi gave the Blackhawks a 3-2 lead 16 seconds into the third period when he skated down the left wing and scored from the face-off circle on a partial breakaway.