▁non - IP ▁context , ▁a ▁person ▁who ▁holds ▁a ▁party ▁on ▁their ▁house ▁gives ▁all ▁of ▁the ▁invited ▁guests ▁an ▁imp lied ▁license ▁to ▁enter ▁their ▁property , ▁and ▁to ▁enter ▁those ▁parts ▁of ▁the ▁property ▁that ▁would ▁usually ▁be ▁made ▁available ▁to ▁guests , ▁such ▁as ▁the ▁bath rooms . ▁ ▁In ▁pat ent ▁law , ▁where ▁an ▁employee ▁invent s ▁something ▁while ▁on ▁company ▁time , ▁the ▁employ er ▁receives ▁an ▁imp lied ▁license ▁to ▁use ▁the ▁in vention , ▁even ▁if ▁no ▁contract ▁exists ▁to ▁assign ▁rights ▁to ▁the ▁employ er . ▁This ▁is ▁sometimes ▁referred ▁to ▁as ▁shop ▁right . ▁In ▁copy right ▁law , ▁the ▁work ▁for ▁h ire ▁provision ▁would ▁grant ▁the ▁employ er ▁copy right ▁to ▁the ▁work , ▁provided ▁the ▁in vention ▁is ▁within ▁the ▁employee ' s ▁job ▁description . ▁ ▁In ▁ 2 0 0 8 , ▁the ▁N inth ▁US ▁Circ uit ▁held ▁that ▁a ▁non - ex clus ive ▁license ▁to ▁use ▁copy right ed ▁material ▁can ▁be ▁granted ▁by ▁imp lied ▁license , ▁but ▁not ▁an ▁exclusive ▁license . ▁Further , ▁if ▁the ▁cre ator ▁has ▁received ▁consideration ▁for ▁the ▁work , ▁the ▁non - ex clus ive ▁grant ▁is ▁ir rev oc able . ▁ ▁Where ▁a ▁copy right ed ▁work ▁has ▁been ▁commission ed , ▁the ▁law ▁in ▁the ▁United ▁Kingdom ▁is ▁that ▁the ▁cre ator ▁retain s ▁rights ▁in ▁the ▁commission ed ▁work . ▁Un author ised ▁use ▁of ▁the ▁work ▁would ▁therefore ▁in fr inge