C08G 73/0253
Polyamines containing sulfur in the main chain
Official title: {Polyamines containing sulfur in the main chain}
C08G73/0253 (Polyamines containing sulfur in the main chain) appears on 62 US grants and 51 published applications in this corpus.
Search patents in C08G- Granted patents
- 62
- Published applications
- 51
- Assignees
- 43
- Inventors
- 165
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 2 | 2 |
| 2012 | 1 | 1 |
| 2013 | 0 | 2 |
| 2014 | 1 | 1 |
| 2015 | 3 | 2 |
| 2016 | 0 | 1 |
| 2017 | 1 | 6 |
| 2018 | 4 | 4 |
| 2019 | 2 | 3 |
| 2020 | 1 | 5 |
| 2021 | 4 | 5 |
| 2022 | 5 | 2 |
| 2023 | 2 | 4 |
| 2024 | 2 | 3 |
| 2025 | 2 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Poly(β-amino ester)-co-polyethylene glycol (PEG-PBAE-PEG) polymers for gene and drug delivery2 Jun 2026US 12,643,980 B2The Johns Hopkins University
- Biodegradable cationic polymers and uses thereof20 Jan 2026US 12,528,912 B2Thermo Fisher Scientific Baltics UAB
- Bioreducible poly (beta-amino ester)s for siRNA delivery29 Jul 2025US 12,371,522 B2The Johns Hopkins University
- Closed-loop thermoplastic copolymers6 May 2025US 12,291,601 B2HRL Laboratories, LLC
- Multifunctional materials for temporary bonding2 Jul 2024US 12,024,594 B2Brewer Science Inc.
- Bioreducible Poly (Beta-Amino Ester)s For siRNA Delivery2 Apr 2026US 2026/0092134 A1The Johns Hopkins University
- Closed-loop thermoplastic copolymers17 Jul 2025US 2025/0230281 A1HRL Laboratories, LLC
- Azanaphthalene-functionalized polymers for gene and drug delivery26 Jun 2025US 2025/0207150 A120MED Therapeutics B.V.
- Closed-loop thermoplastic copolymers27 Feb 2025US 2025/0066551 A1HRL Laboratories, LLC
- Catecholamine-based membrane, process for its preparation and uses thereof22 Aug 2024US 2024/0277896 A1Consejo Superior De Investigaciones Cientificas (Csic)
Most cited
By later US patents
- Quaternized polymer for use as a cosmetic agent in cosmetic compositions for the hair and skin301US 4,217,914 AL'oreal · 1980
- Hair dyeing compositions containing quaternized polymer234US 4,422,853 AL'oreal · 1983
- Functional ionene compositions and their use196US 4,075,136 ACalgon Corporation · 1978
- Functional ionene compositions and their use178US 4,166,894 ACalgon Corporation · 1979
- Quaternized polymer for use as a cosmetic agent in cosmetic compositions for the hair and skin140US 5,196,189 ASociete Anonyme dite: L'Oreal · 1993