Category	Brief Description	Patent Registration Number
1	Sn-(0.05~1)Cu-(0.0001~3)P	No. 0327767 lead-free alloy metal for soldering
2	Sn-(0.5~2.5)Ag-(0.1~7.0)Cu-(0.0001~3)P	No. 0327768 lead-free alloy metal for soldering
3	Sn-(0.5~3.5)Ag-(0.5~5)Cu-(4~10)Bi(0.0001~3)P	No. 0333401 lead-free alloy metal for soldering
4	Sn-(1.0~4.0)Ag-(0.1~10)Bi-(0.5~3)Sb-(0.0001~3)P	No. 0333402 lead-free alloy metal for soldering
5	Sn - (0.1~5)Cu - (0.1~4)Sb - (0.0001~3)P	No. 0337496 lead-free alloy metal for soldering
6	Sn - (0.1~5)Cu - (0.1~4)Sb - (0.5~5)Ag - (0.0001~3)P	No. 0337497 lead-free alloy metal for soldering
7	Sn - (0.1~5)Cu - (0.1~4)Sb - (0.1~10)Bi - (0.0001~3)P	No. 0337498 lead-free alloy metal for soldering
8	Sn – (1~15%) Bi – (0.001~2%)Co – (0.01~2%)Ge	No. GB2417038 lead-free alloy metal for soldering (UK Patent)