A model independent search for Higgs bosons is performed using 625 pb$^{-1}$ of data taken at LEP energies between 189 and 209 GeV. No signal is found. Upper limits are given for the production cross section of Higgs bosons, $\sigma(e^+e^- \rightarrow $ hZ$)$ and and $\sigma(e^+e^- \rightarrow $ hA$)$, at 95\% C.L. as function on the mass of the Higgs bosons.