Filings by year

D21H 21/24: granted patents and published applications per publication year
YearGranted patentsPublished applications
198110
198200
198300
198400
198500
198600
198700
198800
198910
199000
199100
199200
199310
199470
1995160
1996130
199760
199830
199980
2000120
200180
200273
200385
2004914
200557
2006215
200756
200828
200944
201078
201168
201238
201369
2014108
201509
201648
201759
201808
20191114
20201415
20211013
20221214
2023118
20241310
202577
202608

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

Recent patents

Most cited

By later US patents