C08G 2/38
Block or graft polymers prepared by polymerisation of aldehydes or ketones on
Official title: Block or graft polymers prepared by polymerisation of aldehydes or ketones on to macromolecular compounds
C08G2/38 (Block or graft polymers prepared by polymerisation of aldehydes or ketones on) appears on 40 US grants and 19 published applications in this corpus.
Search patents in C08G- Granted patents
- 40
- Published applications
- 19
- Assignees
- 20
- Inventors
- 82
- Latest grant
- 17 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 2 | 3 |
| 2018 | 3 | 2 |
| 2019 | 0 | 3 |
| 2020 | 3 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for producing polyoxymethylene polyoxyalkylene block copolymers17 Sep 2024US 12,091,492 B2Covestro Intellectual Property GmbH & Co.KG
- Polyacetal resin composition and molded article thereof20 Oct 2020US 10,808,117 B2Asahi Kasei Kabushiki Kaisha
- Polyoxymethylene resin molded article, sliding member, and ramp for hard disk22 Sep 2020US 10,781,307 B2Asahi Kasei Kabushiki Kaisha
- Process for the production of polyoxymethylene block copolymers1 Sep 2020US 10,759,902 B2Covestro Deutschland AG
- Process for the production of polyoxymethylene block copolymers9 Oct 2018US 10,093,772 B2Covestro Deutschland AG
- Composition for inorganic powder injection molding, and molded body and sintered body using the same26 Sep 2024US 2024/0316628 A1Asahi Kasei Kabushiki Kaisha
- Process for producing polyoxymethylene-polyalkylene oxide block copolymers21 Apr 2022US 2022/0119579 A1Covestro Intellectual Property GmbH & Co.KG
- Method for producing polyoxymethylene polyoxyalkylene block copolymers17 Feb 2022US 2022/0049042 A1Covestro Intellectual Property GmbH & Co.KG
- Polyoxymethylene and Siloxane Block Copolymers and Process For Making Same9 May 2019US 2019/0135985 A1Celanese Sales Germany GmbH
- Polyoxymethylene and Siloxane Copolymers and Process For Making Same9 May 2019US 2019/0135986 A1Celanese Sales Germany GmbH
Most cited
By later US patents
- Thermoplastic resin composition21US 4,959,404 APolyplastics Co., Ltd. · 1990
- Polyacetal and process of producing same20US 4,377,667 AAsahi Kasei Kogyo Kabushiki Kaisha · 1983
- Low-molecular weight oxymethylene polymer and composition thereof18US 6,388,049 B1Asahi Kasei Kabushiki Kaisha · 2002
- Polyacetal copolymers and process for production thereof15US 4,535,127 AAsahi Kasei Kogyo Kabushiki Kaisha · 1985
- Process for manufacturing multisequence star or network polycondensates by di- or multi-aldehyde coupling, and polycondensates obtained12US 5,346,956 AElf Atochem S. A. · 1994