C08G 73/0293
Quaternisation of polyamidoamines
Official title: {Quaternisation of polyamidoamines}
C08G73/0293 (Quaternisation of polyamidoamines) appears on 65 US grants and 48 published applications in this corpus.
Search patents in C08G- Granted patents
- 65
- Published applications
- 48
- Assignees
- 46
- Inventors
- 174
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 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 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 3 |
| 2003 | 2 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 0 |
| 2007 | 2 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 2 | 1 |
| 2011 | 1 | 2 |
| 2012 | 0 | 3 |
| 2013 | 4 | 3 |
| 2014 | 1 | 0 |
| 2015 | 2 | 5 |
| 2016 | 1 | 2 |
| 2017 | 4 | 1 |
| 2018 | 3 | 5 |
| 2019 | 2 | 3 |
| 2020 | 5 | 4 |
| 2021 | 2 | 2 |
| 2022 | 1 | 2 |
| 2023 | 1 | 1 |
| 2024 | 3 | 2 |
| 2025 | 0 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Immolative cell-penetrating complexes for nucleic acid delivery to the lung26 May 2026US 12,636,372 B2The Board of Trustees of the Leland Stanford Junior University
- Fibers of polymers that have a backbone including a positively charged component of a zwitterionic moiety, and their use in implantable therapeutic delivery systems24 Feb 2026US 12,559,867 B2Cornell University
- Composition for copper bump electrodeposition comprising a polyaminoamide type leveling agent5 Nov 2024US 12,134,834 B2BASF SE
- Semiconductor film composition, method for manufacturing semiconductor film composition, method for manufacturing semiconductor member, method for manufacturing semiconductor processing material, and semiconductor device23 Apr 2024US 11,965,109 B2Mitsui Chemicals, Inc.
- Immolative cell-penetrating complexes for nucleic acid delivery to the lung19 Mar 2024US 11,931,416 B2The Board of Trustees of the Leland Stanford Junior University
- Composition for copper electrodeposition comprising a polyaminoamide type leveling agent24 Apr 2025US 2025/0129503 A1BASF SE
- Immolative cell-penetrating complexes for nucleic acid delivery to the lung22 Aug 2024US 2024/0277854 A1The Board of Trustees of the Leland Stanford Junior University
- Antiviral composition for the surface treatment of an article18 Jul 2024US 2024/0240034 A1
- Composition for copper bump electrodeposition comprising a polyaminoamide type leveling agent11 May 2023US 2023/0142238 A1BASF SE
- Fibers of polymers that have a backbone including a positively charged component of a zwitterionic moiety, and their use in implantable therapeutic delivery systems1 Dec 2022US 2022/0380944 A1Cornell University
Most cited
By later US patents
- Enhancement of paper dry strength by anionic and cationic guar combination57US 5,502,091 AHercules Incorporated · 1996
- Cross-linked polymer31US 5,986,042 AMitsui Chemicals, Inc. · 1999
- Enhancement of paper dry strength by anionic and cationic polymer combination28US 5,318,669 AHercules Incorporated · 1994
- Enhancement of paper dry strength by anionic and cationic guar combination25US 5,633,300 AHercules Incorporated · 1997
- Enhancement of paper dry strength by anionic and cationic guar combination24US 5,338,407 AHercules Incorporated · 1994