C08G 64/205
Characterised by the apparatus used
Official title: {characterised by the apparatus used}
C08G64/205 (Characterised by the apparatus used) appears on 101 US grants and 97 published applications in this corpus.
Search patents in C08G- Granted patents
- 101
- Published applications
- 97
- Assignees
- 50
- Inventors
- 292
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 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 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 7 | 2 |
| 2002 | 6 | 6 |
| 2003 | 7 | 6 |
| 2004 | 3 | 4 |
| 2005 | 3 | 4 |
| 2006 | 5 | 3 |
| 2007 | 0 | 7 |
| 2008 | 3 | 7 |
| 2009 | 9 | 3 |
| 2010 | 3 | 3 |
| 2011 | 4 | 2 |
| 2012 | 0 | 3 |
| 2013 | 1 | 4 |
| 2014 | 2 | 2 |
| 2015 | 4 | 3 |
| 2016 | 5 | 4 |
| 2017 | 4 | 2 |
| 2018 | 0 | 4 |
| 2019 | 4 | 3 |
| 2020 | 2 | 5 |
| 2021 | 3 | 7 |
| 2022 | 5 | 1 |
| 2023 | 2 | 0 |
| 2024 | 2 | 9 |
| 2025 | 2 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ring-opening polymerizations using a flow reactor8 Sep 2026US 12,729,271 B2International Business Machines Corporation
- Cyclopropenimines for activation of carbon dioxide16 Sep 2025US 12,415,889 B2International Business Machines Corporation
- Continuous manufacturing of polyol4 Feb 2025US 12,215,187 B2Saudi Arabian Oil Company
- Polycarbonate23 Jan 2024US 11,879,035 B2Sabic Global Technologies B.V.
- Oligomeriser with improved mixing performance2 Jan 2024US 11,859,048 B2Sabic Global Technologies B.V.
- Reactors and their special design suitable for a high flexible and robust polycarbonate plant, in particular by means of a pre-transesterification technology20 Aug 2026US 2026/0241359 A1Epc Engineering & Technologies GmbH
- Process and apparatus for increasing the flexibility and robustness of a polycarbonate plant by means of a pre-transesterificationreaction technology9 Jul 2026US 2026/0193411 A1Epc Engineering & Technologies GmbH
- Polycarbonate production method, dihydroxy compound recovery method, and polycarbonate production apparatus9 Oct 2025US 2025/0313666 A1Asahi Kasei Kabushiki Kaisha
- Aromatic polycarbonate, aromatic polycarbonate production method, and container7 Nov 2024US 2024/0368345 A1Asahi Kasei Kabushiki Kaisha
- Method for Preparing a Polysiloxane-Polycarbonate Block Copolymer24 Oct 2024US 2024/0352188 A1Kovestro Deutschland AG
Most cited
By later US patents
- Method for the manufacture of aromatic polycarbonate32US 5,525,701 AGeneral Electric Company · 1996
- Process for producing a polycarbonate resin27US 6,252,034 B1Teljin Limited · 2001
- Method and apparatus for the production of polycarbonates with brine recycling27US 6,340,736 B12002
- Method for making an aromatic polycarbonate25US 6,790,929 B2General Electric Company · 2004
- Method for producing an aromatic polycarbonate having improved melt stability21US 5,747,609 AAsahi Kasei Kogyo Kabushiki Kaisha · 1998