Granted patents
1,831
Published applications
2,418
Assignees
643
Inventors
5,105
Latest grant
6 Oct 2026

Filings by year

C08G 18/791: granted patents and published applications per publication year
YearGranted patentsPublished applications
197630
197700
197850
197920
198000
1981120
198260
198370
1984120
1985210
1986130
1987260
1988210
1989210
1990130
1991170
1992220
1993260
1994150
1995150
1996170
199790
1998300
1999310
2000210
20012210
20023532
20033170
20043378
20053464
20064263
20072797
20082367
20092377
20103885
20114879
20123978
20135281
20146799
201579104
20166788
20176589
201872127
201984136
2020105151
202180144
202281159
202393134
202475142
20258997
20266267

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