Patent applications per year

Year #
1973 1
1974 1
1975 4
1976 2
1977 3
1978 3
1979 5
1980 2
1981 1
1983 2
1984 1
1985 6
1986 1
1987 2
1988 2
1989 4
1990 2
1991 4
1992 2
1993 3
1994 4
1995 3
1997 1
1998 1
2002 1
Checked
3 April 2013
Published
18 August 2011
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