C08G 18/4275
Valcrolactone and/or substituted valcrolactone
Official title: {Valcrolactone and/or substituted valcrolactone}
C08G18/4275 (Valcrolactone and/or substituted valcrolactone) appears on 11 US grants and 11 published applications in this corpus.
Search patents in C08G- Granted patents
- 11
- Published applications
- 11
- Assignees
- 14
- Inventors
- 38
- Latest grant
- 25 Dec 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 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 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 3 | 3 |
| 2018 | 2 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Recovery of monomer from polyurethane materials by depolymerization25 Dec 2018US 10,160,741 B2Regents of the University of Minnesota
- Poly(beta-methyl-delta-valerolactone) block polymers18 Sep 2018US 10,077,340 B2Regents of the University of Minnesota
- Recovery of monomer from polyurethane materials by depolymerization14 Nov 2017US 9,815,808 B2Regents of the University of Minnesota
- Polyurethane11 Jul 2017US 9,701,779 B2Nippon Soda Co., Ltd.
- Polyurethane11 Jul 2017US 9,701,780 B2Nippon Soda Co., Ltd.
- Polyester Polyols and Polyurethanes9 Jul 2026US 2026/0193404 A1Loop CO2, Inc.
- Recovery of monomer from polyurethane materials by depolymerization1 Feb 2018US 2018/0030023 A1Regents of the University of Minnesota
- Recovery of monomer from polyurethane materials by depolymerization31 Aug 2017US 2017/0247350 A1Regents of the University of Minnesota
- Polyurethane two-component or multi-component systems having a latent thickening tendency8 Jun 2017US 2017/0158838 A1
- Poly(beta-methyl-delta-valerolactone) block polymers16 Feb 2017US 2017/0044326 A1Regents of the University of Minnesota
Most cited
By later US patents
- Process for production of polyurethane22US 4,551,518 AKuraray Co., Ltd. · 1985
- Polyurethane dispersants11US 6,509,409 B1Avecia Limited · 2003
- Recovery of monomer from polyurethane materials by depolymerization3US 9,815,808 B2Regents of the University of Minnesota · 2017
- Flexible polyurethane foam2US 6,303,669 B1Inoac Corporation · 2001
- Recovery of monomer from polyurethane materials by depolymerization1US 10,160,741 B2Regents of the University of Minnesota · 2018