如何进行专利搜索.doc

如何进行美国专利搜索1、 在百度里，搜索关键字： U S patent2、 进入连接：/patents/process/search/#heading-1 3、 点击第一项：patent full-text database, 进入：/ 4、 然后进入各种search方式：比如进入：Quick Search5、 在栏目：term1, 填入：digital magnetic sensor, 开始搜索,得到如下内容：PAT. NO.Title18,098,062Comparator circuit having latching behavior and digital output sensors therefrom28,089,231Electric motor, method for correcting sensor output for the same, and control circuit38,080,967Brushless electric machine48,072,166Brushless motor58,035,325Single-phase brushless motor68,004,225Drive control circuit for electric motor and electric motor equipped with same77,994,782Magnetic detection circuit87,982,461Magnetic sensor and manufacturing method therefor97,906,930Brushless electric machine107,906,925Electric motor, drive system employing multiple electric motors, and method for controlling the same117,635,993Digital magnetic current sensor and logic127,406,883Compact device for measuring the speed and the direction of rotation of an object137,259,550Device for calibration of magnetic sensors in three dimensions146,754,048Multiple magnetoresistive (MR) layer sensor element having longitudinal bias layers with non-parallel magnetizations156,449,131Canted longitudinal patterned exchange biased dual-stripe magnetoresistive (DSMR) sensor element and method for fabrication thereof166,322,640Multiple thermal annealing method for forming antiferromagnetic exchange biased magnetoresistive (MR) sensor element176,310,751Anti-parallel longitudinal patterned exchange biased dual stripe magnetoresistive (DSMR) sensor element and method for fabrication thereof186,295,718Method for fabricating a non-parallel magnetically biased multiple magnetoresistive (MR) layer magnetoresistive (MR) sensor element196,230,390Canted longitudinal patterned exchange biased dual-stripe magnetoresistive (DSMR) sensor element and method for fabrication thereof204,302,724Pickup probe for engine timing214,183,419Hydrostatic front wheel drive system224,177,870Hydrostatic front wheel drive system234,159,658Rotary index tables6、 得到以上的专利信息后，一方面可以浏览、一方面可以截取到自己的文件中。这些阅读一般只是文本阅读，不能看到图像。进行大概的阅读后，对有兴趣的进行详细的阅读，这时候，需要通过专利后，把整个专利文献，下载成pdf文件。7、 打开连接：/， 输入相应的专利号，比如第一个专利：8,098,06