Filings by year

B60Q 1/441: granted patents and published applications per publication year
YearGranted patentsPublished applications
197620
197700
197800
197910
198010
198120
198200
198310
198400
198500
198620
198720
198830
198900
199050
199110
199210
199310
199420
199520
199610
199730
199830
199930
200020
200100
200233
200321
200422
200504
200647
200727
200836
200925
201025
201135
201234
201335
201466
201555
201656
201728
201875
201955
202055
202162
202213
202332
202454
202520

By publication year. Applications have been published since 2001.