C12P 17/18
Containing at least two hetero rings condensed among themselves or condensed with
Official title: containing at least two hetero rings condensed among themselves or condensed with a common carbocyclic ring system, e.g. rifamycin {(e.g. Rifamycin C12P17/189)}
C12P17/18 (Containing at least two hetero rings condensed among themselves or condensed with) appears on 1,094 US grants and 770 published applications in this corpus.
Search patents in C12P- Granted patents
- 1,094
- Published applications
- 770
- Assignees
- 514
- Inventors
- 2,765
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 11 | 0 |
| 1979 | 26 | 0 |
| 1980 | 27 | 0 |
| 1981 | 28 | 0 |
| 1982 | 26 | 0 |
| 1983 | 21 | 0 |
| 1984 | 22 | 0 |
| 1985 | 24 | 0 |
| 1986 | 7 | 0 |
| 1987 | 14 | 0 |
| 1988 | 10 | 0 |
| 1989 | 20 | 0 |
| 1990 | 21 | 0 |
| 1991 | 27 | 0 |
| 1992 | 33 | 0 |
| 1993 | 44 | 0 |
| 1994 | 31 | 0 |
| 1995 | 32 | 0 |
| 1996 | 28 | 0 |
| 1997 | 17 | 0 |
| 1998 | 19 | 0 |
| 1999 | 20 | 0 |
| 2000 | 23 | 0 |
| 2001 | 30 | 4 |
| 2002 | 26 | 18 |
| 2003 | 19 | 39 |
| 2004 | 12 | 40 |
| 2005 | 10 | 31 |
| 2006 | 20 | 28 |
| 2007 | 27 | 27 |
| 2008 | 20 | 24 |
| 2009 | 10 | 30 |
| 2010 | 21 | 25 |
| 2011 | 14 | 22 |
| 2012 | 13 | 29 |
| 2013 | 15 | 28 |
| 2014 | 24 | 38 |
| 2015 | 31 | 33 |
| 2016 | 32 | 39 |
| 2017 | 29 | 36 |
| 2018 | 27 | 20 |
| 2019 | 24 | 33 |
| 2020 | 26 | 35 |
| 2021 | 29 | 38 |
| 2022 | 21 | 33 |
| 2023 | 23 | 35 |
| 2024 | 18 | 39 |
| 2025 | 28 | 29 |
| 2026 | 8 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C12P 17/182Heterocyclic compounds containing nitrogen atoms as the only ring heteroatoms in the351
- C12P 17/188Heterocyclic compound containing in the condensed system at least one hetero ring320
- C12P 17/181Heterocyclic compounds containing oxygen atoms as the only ring heteroatoms in the290
- C12P 17/185Heterocyclic compounds containing sulfur atoms as ring hetero atoms in the condensed84
Recent patents
- Bioprocess for the simultaneous production of polyhydroxybutyrate and violacein pigment from himalayan bacterium iodobacter sp. PCH 19414 Jul 2026US 12,680,073 B2Council of Scientific and Industrial Research An Indian Registered Body Incorporated Under the Regn. of Soc. Act (Act Xxi of 1860)
- Engineered transaminase biocatalysts and methods for synthesizing chiral amines30 Jun 2026US 12,668,824 B2Codexis, Inc.
- Recombinant olivetolic acid cyclase polypeptides engineered for enhanced biosynthesis of cannabinoids23 Jun 2026US 12,662,666 B2Epimeron USA, Inc.
- Carbonyl reductase mutant, preparation method and use thereof, and preparation method of ethyl (R)-6-hydroxy-8-chlorooctanoate23 Jun 2026US 12,662,690 B2Kingdomway Biotech. (Jiangsu) Co., Ltd.
- Antibacterial tryglysin agents19 May 2026US 12,630,585 B2The Board of Trustees of the University of Illinois
- Tropane Alkaloid (TA) Producing Non-Plant Host Cells, and Methods of Making and Using the Same17 Sep 2026US 2026/0275357 A1The Board of Trustees of the Leland Stanford Junior University
- Amine synthesis10 Sep 2026US 2026/0265793 A1
- Methods of producing morphinan alkaloids and derivatives27 Aug 2026US 2026/0250729 A1Antheia, Inc.
- Yeast mutant strain hs-y010 producing high-concentration heme, and method for high heme production using same13 Aug 2026US 2026/0234542 A1Hanwha Solutions Corporation
- Production of Geranyl Diphosphate-Derived Compounds13 Aug 2026US 2026/0234674 A1Københavns Universitet
Most cited
By later US patents
- Fermentation process of preparing demethyl maytansinoids304US 4,361,650 ATakeda Chemical Industries, Ltd. · 1982
- Maytansinoids302US 4,322,348 ATakeda Chemical Industries, Ltd. · 1982
- Maytansinoids302US 4,331,598 ATakeda Chemical Industries, Ltd. · 1982
- Demethyl maytansinoids301US 4,307,016 ATakeda Chemical Industries, Ltd. · 1981
- Maytansinoid compound300US 4,362,663 ATakeda Chemical Industries, Ltd. · 1982