Filings by year

D06L 4/12: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976120
197740
1978110
197960
198030
198120
198230
198310
198420
198550
198630
198700
198830
198920
199060
199150
199230
199350
199460
199550
1996170
1997120
1998170
1999110
2000110
200164
200263
200387
200444
200516
200627
200721
200832
2009010
201038
2011104
201223
201329
201462
201546
201622
201732
201822
201902
202034
202111
202206
202315
202435
202521
202601

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

Recent patents

Most cited

By later US patents