American patent
6.In 1836 American congress revised the Patent Act of 1793 extensively by setting up special management institution, resuming the examination system and modifying the patent rights entity, substantial essentials, patent deadline and etc. , consequently which laid the foundation for modern American patent system.
9.American enthusiasm for innovation was aroused hugely by the promulgation of early Patent Act Under condition of economic development in those days the early American patent system affected the technology innovation of agriculture firstly, then affected the introduction of foreign advanced technology.

