C07C 309/59
Nitrogen analogues of carboxyl groups
C07C309/59 (Nitrogen analogues of carboxyl groups) appears on 50 US grants and 41 published applications in this corpus.
Search patents in C07C- Granted patents
- 50
- Published applications
- 41
- Assignees
- 29
- Inventors
- 135
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 2 |
| 2002 | 3 | 3 |
| 2003 | 3 | 2 |
| 2004 | 1 | 3 |
| 2005 | 2 | 3 |
| 2006 | 1 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 1 |
| 2009 | 1 | 1 |
| 2010 | 2 | 1 |
| 2011 | 0 | 2 |
| 2012 | 2 | 1 |
| 2013 | 1 | 2 |
| 2014 | 2 | 3 |
| 2015 | 2 | 3 |
| 2016 | 2 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 0 | 1 |
| 2021 | 2 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Isotope-enriched 3-amino-1-propanesulfonic acid derivatives and uses thereof4 Nov 2025US 12,459,888 B2Risen (Suzhou) Pharma Tech Co., Ltd.
- Resist composition and resist patterning process28 Sep 2021US 11,131,926 B2Shin-Etsu Chemical Co., Ltd.
- Isotope-enriched 3-amino-1-propanesulfonic acid derivatives and uses thereof23 Mar 2021US 10,954,188 B2Risen (Suzhou) Pharma Tech Co., Ltd.
- Isotope-enriched 3-amino-1-propanesulfonic acid derivatives and uses thereof12 Nov 2019US 10,472,323 B2Risen (Suzhou) Pharma Tech Co., Ltd.
- Immunomodulator and anti-inflammatory compounds12 Sep 2017US 9,758,474 B2Incozen Therapeutics Pvt. Ltd.
- Onium salt monomer, polymer, chemically amplified resist composition, and pattern forming process8 Oct 2026US 2026/0310075 A1Shin-Etsu Chemical Co., Ltd.
- Radiation-sensitive composition, method for forming pattern and onium salt compound5 Mar 2026US 2026/0063994 A1Jsr Corporation
- Isotope-enriched 3-amino-1-propanesulfonic acid derivatives and uses thereof5 Feb 2026US 2026/0035342 A1Risen (Suzhou) Pharma Tech Co., Ltd.
- Sulfonated and phosphorylated aromatic molecules27 Mar 2025US 2025/0100963 A1Xavier University of Louisiana
- Isotope-enriched 3-amino-1-propanesulfonic acid derivatives and uses thereof16 May 2024US 2024/0158343 A1Risen (Suzhou) Pharma Tech Co., Ltd.
Most cited
By later US patents
- Compositions for oral delivery of active agents159US 5,650,386 AEmisphere Technologies, Inc. · 1997
- Compounds and compositions for delivering active agents125US 5,866,536 AEmisphere Technologies, Inc. · 1999
- Modified amino acids and compositions comprising the same for delivering active agents83US 6,071,510 AEmisphere Technologies, Inc. · 2000
- Compounds and compositions for delivering active agents67US 6,001,347 AEmisphere Technologies, Inc. · 1999
- Compounds and compositions for delivering active agents63US 5,965,121 AEmisphere Technologies, Inc. · 1999