Filings by year

H02M 5/271: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976140
197760
197830
197900
198000
198150
198210
198320
198430
198520
198640
198780
198800
198940
199000
199130
199210
199320
199430
199510
199600
199700
199830
199950
200030
200132
200232
2003412
200494
200528
200633
200753
200848
200933
201033
201153
201241
201327
201431
201552
201621
201724
201824
201943
202031
202124
202243
202341
202402
202532

By publication year. Applications have been published since 2001.

Recent patents

Most cited

By later US patents