C08G 4/00
Condensation polymers of aldehydes or ketones with polyalcohols
Official title: Condensation polymers of aldehydes or ketones with polyalcohols; Addition polymers of heterocyclic oxygen compounds containing in the ring at least once the grouping —O—C—O— (of cyclic oligomers of aldehydes C08G2/00)
C08G4/00 (Condensation polymers of aldehydes or ketones with polyalcohols) appears on 153 US grants and 72 published applications in this corpus.
Search patents in C08G- Granted patents
- 153
- Published applications
- 72
- Assignees
- 93
- Inventors
- 333
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 1 | 0 |
| 1978 | 14 | 0 |
| 1979 | 7 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 12 | 0 |
| 1984 | 5 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 8 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 2 | 2 |
| 2004 | 0 | 2 |
| 2005 | 1 | 2 |
| 2006 | 1 | 1 |
| 2007 | 2 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 3 | 4 |
| 2014 | 4 | 7 |
| 2015 | 3 | 5 |
| 2016 | 3 | 15 |
| 2017 | 6 | 3 |
| 2018 | 4 | 1 |
| 2019 | 2 | 4 |
| 2020 | 2 | 3 |
| 2021 | 3 | 0 |
| 2022 | 2 | 5 |
| 2023 | 2 | 5 |
| 2024 | 1 | 3 |
| 2025 | 0 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cross-linked aliphatic polyketones14 Jul 2026US 12,679,921 B2Carl Freudenberg KG
- Lithium selective organogels2 Jun 2026US 12,643,975 B2Board of Regents, The University of Texas System
- Polyvinyl ester formulations, methods of making the same roofing materials and roofing systems including the same6 Aug 2024US 12,054,608 B2Bmic LLC
- Interlayer film for laminated glass and laminated glass4 Jul 2023US 11,691,392 B2Sekisui Chemical Co., Ltd.
- Polyvinyl ester formulations, methods of making the same roofing materials and roofing systems including the same16 May 2023US 11,649,350 B2Bmic LLC
- Use of Biomass to Produce Polyoxymethylene Copolymers13 Aug 2026US 2026/0234317 A1Celanese International Corporation
- Ethylenically unsaturated poly(phthalaldehyde) polymers, compositions and methods14 Aug 2025US 2025/0257166 A13M Innovative Properties Company
- Method for producing oxymethylene copolymer and method for producing molded article17 Oct 2024US 2024/0343854 A1Mitsubishi Gas Chemical Company, Inc.
- Liquid monofunctional 1,3-dioxolane copolymers1 Aug 2024US 2024/0254271 A1Wacker Cheimie AG
- Liquid 1,3-dioxolane copolymers2 May 2024US 2024/0141104 A1Wacker Chemie AG
Most cited
By later US patents
- Drug delivery devices manufactured from poly(orthoesters) and poly(orthocarbonates)397US 4,093,709 AAlza Corporation · 1978
- Erodible agent releasing device comprising poly(orthoesters) and poly(orthocarbonates)154US 4,138,344 AAlza Corporation · 1979
- Novel orthoester polymers and orthocarbonate polymers143US 4,180,646 AAlza Corporation · 1979
- Polymeric orthoesters housing beneficial drug for controlled release therefrom84US 4,066,747 AAlza Corporation · 1978
- Initiators for cationic polymerization73US 5,124,417 AMinnesota Mining and Manufacturing Company · 1992