General Science, Mathematics, and Technology


How many patents have been issued by the U.S. Patent Office?

Over seven million patents have been granted by the U.S. Patent Office since its inception in 1790. In recent years, the number of patents issued on a yearly basis has risen dramatically. The following chart shows the numbers of patents of all types (utility, design, plant, and reissue) issued for selected years:

Year Total Number of Patents Granted
1970 67,964
1975 76,810
1980 66,170
1985 77,245
1990 99,077
1995 113,834
2000 175,979
2005 157,718
2008 185,224


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