Filings by year

C25D 11/18: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976100
1977140
1978140
197950
1980110
1981100
198230
1983140
1984150
1985140
198690
198790
198860
198960
199060
199150
1992130
199390
1994140
1995130
199660
199780
199880
1999160
200050
2001135
20021412
20031320
20041016
20051424
2006729
20071218
2008822
2009235
20101745
20111446
20121646
20133165
20142262
20153374
20164379
20175669
20185169
20194560
20204544
20213348
20224148
20232248
20243453
20253538
20262922

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

Subgroups

Granted patents

Recent patents

Most cited

By later US patents