G01C 21/30

Map- or contour-matching

G01C21/30 (Map- or contour-matching) appears on 2,246 US grants and 2,861 published applications in this corpus.

Search patents in G01C
Granted patents
2,246
Published applications
2,861
Assignees
732
Inventors
5,159
Latest grant
6 Oct 2026

Filings by year

G01C 21/30: granted patents and published applications per publication year
YearGranted patentsPublished applications
198310
198410
198500
198600
198720
198840
198980
199040
199190
199260
199330
1994120
1995100
199690
199710
199850
199980
200090
2001114
2002118
20031211
2004720
20051618
2006519
2007830
20081237
20091342
20102541
20112145
20123631
20134638
20144652
20157374
20167098
2017104123
201884157
2019111200
2020149331
2021195361
2022256299
2023267270
2024240237
2025195172
2026141143

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