美国。专利号。
In 1895, he decided that the moment had come, and he caused himself to receive Patent No. 549, 160.
1895年,他发现机会来了,并拿下了专利549,160号。
Its suitable for ball valves, butterfly valves and plug valves and it has gained an invention patent patent No: ZL00111674.
介绍了一种适用于球阀、蝶阀和旋塞阀的阀杆旋转角度启闭的撑拢式阀门密封结构。
"The Supreme Court held that there is no categorical rule denying patent protection for business method patents."
VOA: special.2010.07.16
Patent lawyer Meredith Martin Addy says no one wants to suppress creativity.
VOA: special.2010.07.16
But they only said no to a patent in this case.
VOA: special.2010.07.16
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