C07C 211/64
Having quaternised nitrogen atoms bound to carbon atoms of six-membered aromatic rings
Official title: having quaternised nitrogen atoms bound to carbon atoms of six-membered aromatic rings
C07C211/64 (Having quaternised nitrogen atoms bound to carbon atoms of six-membered aromatic rings) appears on 65 US grants and 75 published applications in this corpus.
Search patents in C07C- Granted patents
- 65
- Published applications
- 75
- Assignees
- 54
- Inventors
- 172
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 1 |
| 2004 | 0 | 3 |
| 2005 | 3 | 7 |
| 2006 | 1 | 3 |
| 2007 | 4 | 2 |
| 2008 | 3 | 3 |
| 2009 | 2 | 1 |
| 2010 | 3 | 2 |
| 2011 | 2 | 4 |
| 2012 | 2 | 2 |
| 2013 | 0 | 2 |
| 2014 | 3 | 1 |
| 2015 | 3 | 6 |
| 2016 | 1 | 1 |
| 2017 | 2 | 1 |
| 2018 | 2 | 1 |
| 2019 | 4 | 11 |
| 2020 | 3 | 4 |
| 2021 | 6 | 3 |
| 2022 | 2 | 4 |
| 2023 | 4 | 2 |
| 2024 | 3 | 3 |
| 2025 | 2 | 4 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Resist composition and patterning process21 Oct 2025US 12,449,730 B2Shin-Etsu Chemical Co., Ltd.
- Composition for removing polymer8 Apr 2025US 12,269,788 B2Dongwoo Fine-Chem Co., Ltd.
- Compound, core-shell dye, photosensitive resin composition including the same, and color filter8 Oct 2024US 12,110,262 B2Samsung SDI.Co., Ltd.
- Method for producing triarylorganoborates23 Jul 2024US 12,043,636 B2Covestro Intellectual Property GmbH & Co.KG
- Compound, core-shell dye, photosensitive resin composition including the same, and color filter2 Apr 2024US 11,945,763 B2Samsung SDI.Co., Ltd.
- Treatment of signs, symptoms and/or complications of viral, bacterial, protozoal, and/or fungal infections by high penetration prodrugs27 Aug 2026US 2026/0248922 A1Techfields Inc.
- Thermal acid generators, coating compositions, and pattern formation methods20 Aug 2026US 2026/0244096 A1
- Polyvalent ammonium salt compound, composition for forming silicon-containing resist underlayer film, and patterning process18 Sep 2025US 2025/0289931 A1Shin-Etsu Chemical Co., Ltd.
- A method for synthesis of halide salts3 Jul 2025US 2025/0214937 A1Solaveni GmbH
- Synthetic intermediates and improved processes for preparing ROCk inhibitors3 Apr 2025US 2025/0109106 A1Alcon Inc.
Most cited
By later US patents
- Transfection reagents155US 7,479,573 B2Invitrogen Corporation · 2009
- Quaternary amine surfactants and methods of using same in isolation of RNA88US 5,728,822 AQiagen GmbH · 1998
- Materials useful as electrolytic solutes83US 6,365,301 B1ACEP Inc. · 2002
- Transfection reagents74US 7,166,745 B1Invitrogen Corporation · 2007
- Transfection reagents62US 7,601,872 B2Life Technologies Corporation · 2009