▁pat ent ▁in fr ing ement ▁to ▁indu ce ▁someone ▁else ▁to ▁in fr inge ▁a ▁pat ent . ▁A ▁pat ent ▁can ▁be ▁a ▁composition ▁of ▁un pat ented ▁components ; ▁the ▁pat ent ▁would ▁cover ▁the ▁invent ive ▁step ▁of ▁selecting ▁and ▁assemb ling ▁those ▁components . ▁Man ufact ure ▁of ▁the ▁un pat ented ▁components ▁would ▁not ▁be ▁an ▁in fr ing ement ▁of ▁the ▁pat ent ▁unless ▁the ▁manufact urer ▁indu ces ▁the ▁recip ient ▁of ▁those ▁components ▁to ▁in fr inge ▁the ▁pat ent . ▁ ▁Wind sur f ing ▁International ▁Inc . ▁v . ▁Tr il antic ▁Cor p . ▁de alt ▁with ▁a ▁manufact urer ▁s elling ▁the ▁un ass emble d ▁components ▁of ▁a ▁pat ented ▁sail board . ▁In ▁the ▁court ' s ▁decision , ▁U rie ▁J ▁stated : ▁Without ▁assembly ▁there ▁can ▁be ▁no ▁purpose ▁in ▁a ▁purch aser ▁bu ying ▁the ▁un ass emble d ▁parts ▁since , ▁un ass emble d , ▁they ▁cannot ▁be ▁used ▁for ▁the ▁purpose ▁for ▁which ▁they ▁are ▁purchased , ▁that ▁is , ▁to ▁sail . ▁To ▁suggest ▁that ▁a ▁pat ent ▁in fr ing ement ▁suit ▁can ▁be ▁successfully ▁avoided ▁by ▁s elling ▁parts ▁as ▁components ▁of ▁a ▁k it ▁in ▁contrad ist inction ▁to ▁their ▁sale ▁assemble d ▁is , ▁in ▁my ▁view , ▁err ant ▁n ons ense . ▁ ▁In ▁Mac L enn an ▁v . ▁Produ its ▁Gilbert ▁Inc ., ▁the ▁court ▁established ▁a ▁three - pr ong ed ▁test