absolute monopoly
noun[CorU]
ukusasituationwhere only onecompany,country, etc.producesandsellsaparticularproduct:
have an absolute monopoly on sthInorderto have anabsolutemonopolyon the use of anidea, you need to take out apatent.
The PostOfficeoncehad anabsolutemonopolyin theprovisionoftelephonelines.