C07D 233/28

With hetero atoms or with carbon atoms having three bonds to hetero

Official title: with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms

C07D233/28 (With hetero atoms or with carbon atoms having three bonds to hetero) appears on 1,168 US grants and 760 published applications in this corpus.

Search patents in C07D
Granted patents
1,168
Published applications
760
Assignees
563
Inventors
3,169
Latest grant
29 Sep 2026

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C07D 233/28: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976290
1977170
1978270
1979210
1980290
1981420
1982320
1983210
1984150
1985210
1986290
1987180
1988190
1989210
1990160
1991160
1992160
1993190
1994170
1995250
1996170
1997240
1998350
1999300
2000280
2001295
20024042
20033357
20042549
20051950
20063536
20071924
20082041
20092234
20102637
20112329
20122823
20132032
20142925
20152824
20162530
20172417
20181732
20192020
20201742
20211820
20221618
20231423
20241923
20251020
202687

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

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