For patents it is much shorter than copyright. Copyright being roughly the lifespan of the creator makes sense when you think George RR Martin has been writing Game of Thrones for 20 years before it appears on HBO. Under a shorter span you could have people selling fanfiction of works before their creators saw any real profit.

IMO what needs reform is that if the public invests in your research the state shoukd hold a percentage of the revenue from the sale of that good. The USA did this until Reagan.