Can someone help me understand what’s going on with the rise in withdrawn patents? (FYI – since 2000 the numbers have been growing substantially faster than the rate of new patent issues). 
I posted last week about recently issued U.S. Patent No. 11,000,000. I should note though that the 50,000+ patents “withdrawn from issue.” This messes up the count.
— Dennis Crouch (@patentlyo) Kan 21, 2021
Source: https://patentlyo.com/patent/2021/05/withdrawn-patents.html
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