C08G 2650/42
Containing orthoester groups
Official title: containing orthoester groups
C08G2650/42 (Containing orthoester groups) appears on 24 US grants and 29 published applications in this corpus.
Search patents in C08G- Granted patents
- 24
- Published applications
- 29
- Assignees
- 17
- Inventors
- 35
- Latest grant
- 8 Dec 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 3 | 3 |
| 2004 | 1 | 4 |
| 2005 | 1 | 1 |
| 2006 | 1 | 2 |
| 2007 | 3 | 1 |
| 2008 | 1 | 1 |
| 2009 | 2 | 3 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 1 |
| 2014 | 2 | 3 |
| 2015 | 1 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 2 |
| 2019 | 1 | 0 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Y-type discrete polyethylene glycol derivative and preparation method thereof8 Dec 2020US 10,858,479 B2Jenkem Technology Co., Ltd. (Beijing)
- Formulations for targeted release of agents under low pH conditions and methods of use thereof16 Jun 2020US 10,682,422 B2Yale University
- Biodegradable, semi-crystalline, phase separated, thermoplastic multi block copolymers for controlled release of biologically active compounds28 May 2019US 10,300,019 B2Innocore Technologies B.V.
- Biodegradable block copolymeric compositions for drug delivery23 Feb 2016US 9,265,836 B2Protherics Salt Lake City, Inc.
- Orthoester compound2 Jun 2015US 9,045,494 B2Nektar Therapeutics
- Biodegradable thermoplastic poly(ortho ester) based multiblock copolymers26 Jun 2025US 2025/0206872 A1InnoCore Technologies Holding B.V.
- Benzoxazine Derivatives Vitrimers1 Feb 2024US 2024/0034720 A1Luxembourg Institute of Science and Technology (List)
- Y-type discrete polyethylene glycol derivative and preparation method thereof20 Dec 2018US 2018/0362712 A1Jenkem Technology Co., Ltd. (Beijing)
- Biodegradable, semi-crystalline, phase separated, thermoplastic multi block copolymers for controlled release of biologically active compounds29 Mar 2018US 2018/0085318 A1Innocore Technologies B.V.
- Formulations for targeted release of agents under low ph conditions and methods of use thereof21 Dec 2017US 2017/0360959 A1Yale University
Most cited
By later US patents
- Method for preparing water-soluble polymer derivatives bearing a terminal carboxylic acid50US 8,435,504 B2Nektar Therapeutics · 2013
- Method of preparing bioerodible polymers having pH sensitivity in the acid range and resulting product48US 4,764,364 AS R I International · 1988
- Method of preparing bioerodible polymers having pH sensitivity in the acid range and resulting product44US 4,855,132 AS R I International · 1989
- Bioerodible polyorthoesters containing amine groups35US 6,524,606 B1A. P. Pharma, Inc. · 2003
- Block copolymers based on poly(ortho esters) containing amine groups28US 6,667,371 B2A. P. Pharma, Inc. · 2003