Navigation
-
GPS - and (GPS, geoposition
satellite) -
Celestial - and (astrolabe, sextant, octant, navigation
(celestial, astral, sighting, stellar)) -
Geographical - and ((terrain following), (navigation
(terrain, landmark, map, geography)) -
Autonomous - and ((navigation, guide, steer)
(independent, autonomous))) -
Radio-Control - and ((control
(radio, wireless)
Hide issues that do not have references in Navigation
Navigation | ||||||
Issue | Number of Patents | GPS | Celestial | Geographical | Autonomous | Radio-Control |
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1971 | 1 | 0 | 1 | 0 | 0 | 0 |
1972 | 0 | 0 | 0 | 0 | 0 | 0 |
1973 | 2 | 0 | 1 | 0 | 0 | 1 |
1974 | 1 | 0 | 1 | 0 | 0 | 0 |
1975 | 0 | 0 | 0 | 0 | 0 | 0 |
1976 | 2 | 0 | 0 | 0 | 0 | 2 |
1977 | 2 | 0 | 1 | 0 | 0 | 1 |
1978 | 0 | 0 | 0 | 0 | 0 | 0 |
1980 | 0 | 0 | 0 | 0 | 0 | 0 |
1981 | 3 | 0 | 2 | 0 | 0 | 1 |
1982 | 1 | 0 | 0 | 0 | 0 | 1 |
1983 | 1 | 0 | 1 | 1 | 0 | 0 |
1984 | 0 | 0 | 0 | 0 | 0 | 0 |
1985 | 1 | 0 | 1 | 0 | 0 | 0 |
1987 | 1 | 0 | 0 | 1 | 0 | 0 |
1988 | 3 | 0 | 2 | 0 | 0 | 1 |
1989 | 1 | 0 | 0 | 1 | 0 | 0 |
1990 | 1 | 0 | 0 | 1 | 0 | 0 |
1991 | 1 | 0 | 1 | 0 | 0 | 0 |
1992 | 0 | 0 | 0 | 0 | 0 | 0 |
1993 | 2 | 0 | 0 | 2 | 0 | 1 |
1994 | 1 | 0 | 1 | 0 | 0 | 0 |
1995 | 2 | 0 | 1 | 0 | 0 | 1 |
1996 | 2 | 1 | 1 | 0 | 0 | 0 |
1997 | 2 | 0 | 0 | 0 | 0 | 2 |
1998 | 4 | 2 | 1 | 0 | 1 | 2 |
1999 | 2 | 1 | 0 | 0 | 0 | 1 |
2000 | 5 | 5 | 1 | 0 | 0 | 0 |
2001 | 8 | 3 | 2 | 2 | 1 | 0 |
2002 | 9 | 5 | 1 | 0 | 0 | 3 |
2003 | 14 | 8 | 2 | 0 | 1 | 6 |
2004 | 18 | 4 | 1 | 10 | 2 | 3 |
2005 | 15 | 6 | 1 | 3 | 2 | 7 |
2006 | 15 | 6 | 2 | 4 | 0 | 5 |
2007 | 3 | 2 | 0 | 0 | 0 | 2 |
2008 | 6 | 3 | 3 | 0 | 2 | 0 |
2009 | 6 | 5 | 1 | 0 | 0 | 1 |
2010 | 4 | 1 | 0 | 1 | 1 | 1 |
2011 | 3 | 0 | 1 | 0 | 0 | 2 |
2012 | 0 | 0 | 0 | 0 | 0 | 0 |
2015 | 1 | 0 | 0 | 1 | 0 | 0 |
No Issue | 10 | 0 | 1 | 2 | 6 | 2 |
Total | 57 | 38 | 30 | 17 | 53 |