Since 1996, ImmunoSigns – previous CHB-Consult, has given license to R-Biopharm, Darmstadt, Germany, to commercialise a beta-lactoglobulin immunoassay (BLG-ELISA), especially design to measure degraded BLG in infant food formulas, and other food items. The License expired by December 2004. A new license contract on nisin immunoassays (Nisin ELISA) applicable in testing food conserved by this bacteriocin has been negotiated by not yet completed.