BURLINGTON, Mass., Feb. 21 -- Palomar Medical Technologies Inc. has reached an agreement granting Laserscope Inc. a non-exclusive 7.5-percent royalty-bearing sublicense to the dominant patents in the field of laser hair removal. Palomar previously granted Coherent Inc. a 7.5-percent sublicense to these same patents.Massachusetts General Hospital granted Palomar the exclusive royalty-bearing license -- with a right to sublicense -- to the patents. The patents relate to methods of cooling the patient's skin through the use of a contact cooling handpiece, as well as to the use of specific ranges for pulse duration, wavelength of radiation, area of radiation field, energy and other parameters to safely remove unwanted hair.