C07C 211/38
Containing condensed ring systems
Official title: containing condensed ring systems
C07C211/38 (Containing condensed ring systems) appears on 94 US grants and 117 published applications in this corpus.
Search patents in C07C- Granted patents
- 94
- Published applications
- 117
- Assignees
- 79
- Inventors
- 357
- Latest grant
- 8 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 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 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 3 |
| 2003 | 2 | 2 |
| 2004 | 2 | 2 |
| 2005 | 1 | 4 |
| 2006 | 2 | 5 |
| 2007 | 1 | 1 |
| 2008 | 2 | 4 |
| 2009 | 1 | 0 |
| 2010 | 1 | 2 |
| 2011 | 3 | 11 |
| 2012 | 0 | 3 |
| 2013 | 6 | 7 |
| 2014 | 4 | 10 |
| 2015 | 3 | 10 |
| 2016 | 5 | 11 |
| 2017 | 10 | 6 |
| 2018 | 3 | 7 |
| 2019 | 9 | 5 |
| 2020 | 1 | 3 |
| 2021 | 3 | 5 |
| 2022 | 3 | 4 |
| 2023 | 3 | 2 |
| 2024 | 0 | 5 |
| 2025 | 1 | 3 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Platform drug delivery system utilizing crystal engineering and theanine dissolution8 Apr 2025US 12,268,783 B2Theaprin Pharmaceuticals Inc.
- Memantine paroxetine cocrystal salt and its preparation method, pharmaceutical composition and application12 Dec 2023US 11,839,607 B2Hefei Keda Bio-Technology Co. Ltd
- Compositions and methods related to di-substituted bicyclo[2.2.1] heptanamine-containing compounds12 Dec 2023US 11,840,495 B2Instituto Carlos Slim De La Salud, A.C.
- Method for preparing amantadine2 May 2023US 11,639,328 B2Shandong Holly Pharmaceutical Co., Ltd.
- Continuous flow processes for making bicyclic compounds24 May 2022US 11,339,103 B2Recurium IP Holdings, LLC
- Use of an amantadine mononitrate compound in manufacture of a medicament for the prevention and treatment of hypertension20 Aug 2026US 2026/0242330 A1Guangzhou Magpie Pharmaceuticals Co., Ltd.
- Effective means to modulate nmda receptor-mediated toxicity6 Nov 2025US 2025/0339402 A1Fundamental Pharma GmbH
- Platform drug delivery system utilizing crystal engineering and theanine dissolution17 Jul 2025US 2025/0228778 A1Theaprin Pharmaceuticals Inc.
- Percutaneous absorption preparation for treating dementia comprising memantine enanthate2 Jan 2025US 2025/0000814 A1Dong-A St Co., Ltd.
- Facile direct amination and alkylamination of carbon nanotubes19 Dec 2024US 2024/0417367 A1Board of Regents, The University of Texas System
Most cited
By later US patents
- Zeolite SSZ-26122US 4,910,006 AChevron Research Company · 1990
- Adamantane derivatives in the prevention and treatment of cerebral ischemia75US 5,061,703 AMerz + Co. GmbH & Co. · 1991
- Compositions containing and methods of using 1-aminoindan and derivatives thereof and process for preparing optically active 1-aminoindan derivatives68US 5,877,218 ATeva Pharmaceutical Industries Ltd. · 1999
- Hydrocarbon conversion processes using SSZ-3143US 5,215,648 AChevron Research and Technology Company · 1993
- Zeolite SSZ-3141US 5,106,801 AChevron Research and Technology Company · 1992