A61L 12/145
Polymeric quaternary ammonium compounds
Official title: {Polymeric quaternary ammonium compounds}
A61L12/145 (Polymeric quaternary ammonium compounds) appears on 86 US grants and 91 published applications in this corpus.
Search patents in A61L- Granted patents
- 86
- Published applications
- 91
- Assignees
- 35
- Inventors
- 143
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 3 |
| 2004 | 0 | 4 |
| 2005 | 0 | 4 |
| 2006 | 1 | 8 |
| 2007 | 2 | 5 |
| 2008 | 1 | 4 |
| 2009 | 3 | 9 |
| 2010 | 1 | 5 |
| 2011 | 3 | 3 |
| 2012 | 2 | 2 |
| 2013 | 1 | 6 |
| 2014 | 3 | 4 |
| 2015 | 4 | 4 |
| 2016 | 9 | 4 |
| 2017 | 4 | 6 |
| 2018 | 4 | 3 |
| 2019 | 2 | 5 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 3 |
| 2023 | 0 | 3 |
| 2024 | 1 | 5 |
| 2025 | 1 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Contact lens treating solution3 Mar 2026US 12,564,602 B2Bausch + Lomb Ireland Limited
- High hyaluronate multi-purpose disinfection solutions for ophthalmic applications20 Jan 2026US 12,527,327 B2CIS Biopharma AG
- Preservative-free contact lens treating solution comprising hyaluronic acid and erythritol4 Mar 2025US 12,239,658 B2Bausch + Lomb Ireland Limited
- Ophthalmic solutions2 Apr 2024US 11,944,638 B2Bausch + Lomb Ireland Limited
- Anti-Acanthamoeba contact lens solution13 Sep 2022US 11,439,146 B2Seed Co., Ltd.
- High hyaluronate multi-purpose disinfection solutions for ophthalmic applications23 Apr 2026US 2026/0107944 A1CIS Biopharma AG
- Contact lens treating solution19 Dec 2024US 2024/0415873 A1Bausch + Lomb Ireland Limited
- Contact lens treating solution4 Jul 2024US 2024/0218291 A1
- Ophthalmic solutions13 Jun 2024US 2024/0189342 A1Bausch + Lomb Ireland Limited
- Contact lens treating solution23 May 2024US 2024/0166971 A1
Most cited
By later US patents
- Aqueous antimicrobial ophthalmic solutions140US 4,525,346 AAlcon Laboratories, Inc. · 1985
- Ophthalmic solutions121US 4,407,791 AAlcon Laboratories, Inc. · 1983
- Anti-microbial compositions and associated methods for preparing the same and for the disinfecting of various objects89US 4,499,077 A1985
- Anti-microbial compositions comprising an aqueous solution of a germicidal polymeric nitrogen compound and a potentiating oxidizing agent72US 4,654,208 A1987
- Disinfectant solution for contact lens67US 4,615,882 A1986