  We have investigated production of doubly charged Higgs particles
$\Delta_{L,R}^{++}$ via WW fusion process in proton-proton collisions at LHC
energies in the framework of the left-right symmetric model. The production
cross section of the right-triplet Higgs is for representative values of model
parameters at femtobarn level. The discovery reach depends on the mass of the
right-handed gauge boson W_R. At best $\Delta_R^{++}$ mass up to 2.4 TeV are
achievable within one year run. For $\Delta^{++}_L$ the corresponding limit is
1.75 TeV which depends on the value of the left-triplet vev v_L. Comparison
with Drell-Yan pair production processes shows that studies of the WW fusion
processes extend the discovery reach of LHC roughly by a factor of two. The
main experimental signal of a produced Higgs would be a hard same-sign lepton
pair. There will be no substantial background due to the Standard Model (SM)
interactions, since in the SM a same-sign lepton pair will always be associated
with missing energy, i.e. neutrinos, due to lepton number conservation.
