Filings by year

E04G 17/0752: granted patents and published applications per publication year
YearGranted patentsPublished applications
197710
197800
197900
198000
198100
198200
198300
198400
198500
198600
198700
198800
198900
199000
199100
199200
199300
199400
199500
199600
199700
199800
199900
200000
200100
200202
200300
200410
200500
200600
200700
200801
200901
201000
201101
201210
201310
201400
201503
201600
201720
201801
201912
202001
202131

By publication year. Applications have been published since 2001.