  Several neutrino observatories have searched for coincident neutrino signals
associated with gravitational waves induced by the merging of two black
holes.No statistically significant neutrino signal in excess of background
level was observed.These experiments use different neutrino detection
technologies and are sensitive to various neutrino types.A combined analysis
was performed on the KamLAND, Super-Kamiokande and Borexino experimental data
with a frequentist statistical approach to achieve a global picture of the
associated neutrino fluence.Both monochromatic and Fermi-Dirac neutrino spectra
were assumed in the calculation.The final results are consistent with null
neutrino signals associated with a binary of black holes merging process.The
derived 90\% confidence level upper limits on the fluence and luminosity of
various neutrino types are presented for neutrino energy less than 110 MeV.
