Pulis felt the wrath of Potters supporters during Saturday's 1-0 home setback against West Ham.
It was their sixth defeat in the last nine Barclays Premier League matches, although they are still nine points clear of the bottom three.
Pulis said: "In five years we've stayed in the Premier League, reached four quarter-finals, a semi-final and an FA Cup final and reached the last 32 in Europe, so we haven't done badly.
"But we know if you don't get results, then people get frustrated and will want more. I have to accept that."