Filings by year

G01C 19/721: granted patents and published applications per publication year
YearGranted patentsPublished applications
197810
197900
198000
198130
198210
198310
198430
198520
198630
198780
1988110
198970
199050
1991100
1992180
1993130
1994220
1995200
1996150
1997100
1998120
1999140
200080
2001120
200297
20031212
2004610
200558
2006107
20071010
20081115
2009711
2010718
2011127
20121112
201388
20141011
20151418
20161418
2017175
20181020
20191714
20201717
20212422
20221618
20231515
2024823
20252423
20261416

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

Subgroups

Granted patents

Recent patents

Most cited

By later US patents