USDA Economic Research Service Data Sets
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Data Sets

Agricultural Biotechnology Intellectual Property: Standard Tables
Year links take you to the relevant patent list within the Detail table.

Utility patents by year, U.S. universities and nonprofits only
Year Utility patents
 Number
1976 5
1977 12
1978 6
1979 11
1980 15
1981 17
1982 18
1983 22
1984 20
1985 27
1986 38
1987 36
1988 48
1989 56
1990 53
1991 88
1992 88
1993 116
1994 116
1995 118
1996 183
1997 287
1998 318
1999 359
2000 287
All years 2,344
Date created: 5/27/2004 1:08:43 PM

 
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Updated date: August 26, 2004