Filings by year

E04G 17/0657: granted patents and published applications per publication year
YearGranted patentsPublished applications
197710
197800
197900
198010
198100
198200
198300
198400
198500
198600
198700
198800
198900
199000
199100
199200
199300
199410
199500
199600
199700
199810
199900
200000
200100
200200
200312
200401
200510
200602
200700
200801
200900
201001
201100
201211
201300
201410
201503
201600
201730
201803
201921
202044
202131
202215
202310
202401

By publication year. Applications have been published since 2001.