first, one had to get control of a basic patent on a new technology, and the best way of doing that was to organize a trust and buy the patent from the inventor.
the basic patent for the theory of magnetic recording dates back to 1886.
用磁录音这一理论的最初专利始于1886年。
a california inventor named gilbert hyatt, who was recently granted a basic patent on the microprocessor, is the latest example of the trend.
最近有一位名叫吉尔伯特?哈耶特的加利福尼亚发明家为微芯片获得了简单专利就是该趋势的最新例证。
the lawyers suggested hiring large numbers of inventors, to build a fortress of improvement patents around the basic patent and keep competitors far from the company’s technology.