97. 97/195
We should forget about small efficiencies, say about 97% of the time;
Premature optimization is the root of all evil.
Yet we should not pass up our opportunities in that critical 3%
Donald Knuth
對於約佔 97% 的些微最佳化,我們應該忽略它們:過早最佳化是萬惡的根源。
剩下關鍵的 3% ,我們則不能放棄最佳化的機會。
技術模式
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技術工具
Current Assignment Data Unavailable, 5,569,349 (2013-10-29 到期 )
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Assigned to 3D Systems, 5,610,824 (2014-03-11 到期 )
Assigned to Stratasys, 5,503,785 (2014-06-02 到期 )
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Assigned to University of Southern California, 5,529,471 (2015-02-03 到期 )
Assigned to DTM Corporation, 5,733,497 (2015-03-20 到期 )
Assigned to 3D Systems, 5,762,856 (2015-06-09 到期 )
...
3D 列印最主要的專利到期,包括,
♫ 選擇性雷射燒結 (selective sintering) 。
♫ 光固化成形法 (stereolithography) 。
Credit: https://www.techdirt.com/articles/20140530/06531127408/120-smartphone-patent-tax-patent-royalties-cost-more-than-actual-hardware-your-phone.shtml