Filings by year

C08G 18/50: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976310
1977210
1978260
1979230
1980260
1981280
1982140
1983320
1984400
1985430
1986290
1987380
1988370
1989470
1990450
1991640
1992620
1993450
1994400
1995200
1996260
1997310
1998440
1999340
2000240
2001174
20022926
20033036
20042437
20051545
20061440
20071849
20082049
20091444
20103354
20112858
20123151
20134159
20143241
20154043
20163962
20174364
20184878
20195083
20206198
20216086
20225698
20236958
20245067
20254449
20263447

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