C07C 309/34

Formed by two rings

Official title: formed by two rings

C07C309/34 (Formed by two rings) appears on 65 US grants and 108 published applications in this corpus.

Search patents in C07C
Granted patents
65
Published applications
108
Assignees
67
Inventors
344
Latest grant
6 Oct 2026

Filings by year

C07C 309/34: granted patents and published applications per publication year
YearGranted patentsPublished applications
198110
198200
198300
198400
198500
198600
198700
198800
198910
199000
199100
199200
199300
199400
199500
199600
199700
199820
199900
200020
200130
200201
200301
200400
200502
200600
200701
200800
200900
201001
201102
201200
201312
201414
201542
201659
201756
201848
201959
202038
202164
202259
202339
202468
2025415
202647

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