definiens: means antigens of Helicobacter pylori ( other than LPS ), and genes encoding such antigens, which are listed in SCHEDULE B as being included in LICENSEE 's research & development program, which list may be amended from time to time by written notice by LICENSEE to VRI ( i ) to add antigens which are included in LICENSEE 's research & development program, in which case such antigens shall then become HPC Antigens and be treated as such for the purpose of this Agreement, PROVIDED, HOWEVER, that VRI has not previously granted a non - exclusive license to a Third - Party with respect to the use of VECTOR in combination with such antigens, or ( ii ) to delete antigens which are excluded from such program, in which case such antigens shall become Other Hp Antigens and be treated as such for the purpose of this Agreement ; means any and all vaccines for active immunization intended for use in the Field of Use which contain HPC Jl.ntigens ( either alone, combined with each other or combined with Other Hp Antigens ) or Other Hp Antigens ( either alone or combined with each other ), in each case formulated in combination with VECTOR