Filings by year

C08G 18/80: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976330
1977400
1978290
1979250
1980320
1981500
1982340
1983390
1984450
1985420
1986390
1987530
1988430
1989560
1990450
1991570
1992600
1993590
1994410
1995440
1996490
1997430
1998760
1999650
2000680
20014516
20026053
200346100
20045198
20054473
20064664
20073256
20082753
20092158
20102456
20112454
20123059
20133564
20145066
20154473
20164372
20175889
20185698
201962112
20208394
202167131
202273106
20236197
20244790
20256376
20264343

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