C08G 2/36
By depolymerisation
Official title: by depolymerisation
C08G2/36 (By depolymerisation) appears on 23 US grants and 9 published applications in this corpus.
Search patents in C08G- Granted patents
- 23
- Published applications
- 9
- Assignees
- 14
- Inventors
- 62
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 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 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 7 |
| 2015 | 0 | 0 |
| 2016 | 3 | 1 |
| 2017 | 3 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Recycling of polyacetal for the production of polyoxymethylene dialkyl ethers22 Sep 2026US 12,742,054 B2Chemcom Investments BV
- Process for the production of trioxane28 Mar 2017US 9,604,956 B2Celanese Sales Germany GmbH
- Process for producing a cyclic acetal21 Feb 2017US 9,574,061 B2Celanese Sales Germany GmbH
- Process for the production of trioxane from aqueous formaldehyde sources17 Jan 2017US 9,546,148 B2Ticona LLC
- Process for producing a cyclic acetal in a heterogeneous reaction system22 Nov 2016US 9,499,512 B2Ticona LLC
- Recycling of polyacetal for the production of polyoxymethylene dialkyl ethers18 May 2023US 2023/0151180 A1Arkema France
- Process For Recycling Polyacetals29 Sep 2016US 2016/0280882 A1Ticona LLC
- Process for Producing A Cyclic Acetal In A Heterogeneous Reaction System27 Nov 2014US 2014/0350216 A1Ticona LLC
- Process For The Production Of Trioxane From Aqueous Formaldehyde Sources20 Nov 2014US 2014/0343300 A1Ticona LLC
- Process for Producing A Cyclic Acetal20 Nov 2014US 2014/0343301 A1Ticona LLC
Most cited
By later US patents
- Process and apparatus for continual melt hydrolysis of acetal copolymers11US 4,458,064 ACelanese Corporation · 1984
- Process for heat stabilizing oxymethylene copolymers7US 4,366,305 AMitsubishi Gas Chemical Company, Inc. · 1982
- Process for preparing a stabilized oxymethylene copolymer6US 4,024,105 AHoechst Aktiengesellschaft · 1977
- Process for the production of oxymethylene copolymer molding compositions with a low content of residual formaldehyde6US 4,225,703 ADeutsche Gold- und Silber-Scheideanstalt vormals Roessler · 1980
- Method of stabilizing polyoxymethylene copolymer5US 4,814,424 AMitsubishi Gas Chemical Company, Inc. · 1989