Filings by year

E01C 19/1072: granted patents and published applications per publication year
YearGranted patentsPublished applications
197620
197700
197840
197910
198020
198100
198210
198320
198430
198500
198620
198720
198820
198900
199030
199110
199210
199330
199420
199560
199610
199710
199800
199910
200010
200110
200201
200310
200401
200521
200602
200700
200800
200911
201000
201110
201202
201301
201410
201500
201634
201753
201831
201924
202001
202111
202220
202301
202401
202501

By publication year. Applications have been published since 2001.

Recent patents

Most cited

By later US patents