Filings by year

C08G 18/67: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976480
1977540
1978570
1979310
1980520
1981630
1982320
1983340
1984430
1985480
1986510
1987390
1988490
1989490
1990350
1991480
1992510
1993410
1994440
1995360
1996460
1997410
1998630
1999540
2000480
20015419
20025857
20034775
20045391
20054492
200642100
20073799
200847118
200943102
201065127
20115696
201261110
201379104
20148895
20158487
201659102
201779109
20187596
201985125
202084151
2021103154
202293138
2023102133
202487119
20258170
20265665

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