有美国优先权的中国专利，怎么才能知道美国的专利号??

中国专利号为:91112768.2
优先权为:优   先   权：  1990.12.17 US 628,000;1991.2.22 US 659,210

哪一个人知道的，请来说一下[s:2]

优先权即US19900628000 19901217; US19910659210 19910222
又是美国专利申请US1991/009144的优先权  
网上美国申请数据只看到2001后

如你要看英文的，建议看
WO/1992/011338----PCT/US1991/009144
优先权:
628,000   17.12.1990   US
659,210   22.02.1991   US
http://www.wipo.int/pctdb/en/fetch.jsp?SEARCH_IA=US1991009144&DBSELECT=PCT&C=10&TOTAL=1&IDB=0&TYPE_FIELD=256&SERVER_TYPE=19-10&QUERY=%28WO%2F92%2F11338%29+&START=1&ELEMENT_SET=B&SORT=41257886-KEY&RESULT=1&DISP=25&FORM=SEP-0%2FHITNUM%2CB-ENG%2CDP%2CMC%2CAN%2CPA%2CABSUM-ENG&IDOC=996564&IA=US1991009144&LANG=ENG&DISPLAY=DOCS

申请号649356
专利号5185094
有关的US5185094
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=5185094.PN.&OS=PN/5185094&RS=PN/5185094

有关的US5403504
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=5403504.PN.&OS=PN/5403504&RS=PN/5403504