  The theoretical description and the survey of physical properties of
superconducting states in the uranium ferromagnetic materials are presented. On
the basis of microscopic theory is shown that the coupling between the
electrons in these ferromagnetic metals by means of magnetization fluctuations
gives rise the triplet pairing superconducting state and the general form of
the order parameter dictated by the symmetry is established.
  The theory allows to explain some specific observations including peculiar
phenomenon of reentrant superconductivity in URhGe in magnetic field
perpendicular to the direction of spontaneous magnetization.
  In addition we describe several particular topics relating to uranium
superconducting ferromagnets: (i) critical magnetic relaxation in dual
localized-itinerant ferromagnets, (ii) phase transition to ferromagnetic state
in Fermi liquid and UGe$_2$, (iii) superconducting ordering in ferromagnetic
metals without inversion symmetry.
