The Blues extended their unbeaten run to 10 games since the departure of Jose Mourinho.
"Being unbeaten is always important but obviously we would have preferred to win than draw," Courtois to Chelsea's official website.
"We could have won. It's a pity we didn't but now we have an important game against Manchester United.
"We want to win every game and move up the table, it's another big one."
"He's [Gomes] a very good goalkeeper and he proved that, the last save from Diego was terrific and he saved them the points," Courtois added.
"We're not happy, we had the biggest chances and Gomes made two big saves. "We cannot be happy with a point but it was a solid performance."