C08G 73/1071
Wholly aromatic polyimides containing oxygen in the form of ether bonds in
Official title: {Wholly aromatic polyimides containing oxygen in the form of ether bonds in the main chain}
C08G73/1071 (Wholly aromatic polyimides containing oxygen in the form of ether bonds in) appears on 866 US grants and 975 published applications in this corpus.
Search patents in C08G- Granted patents
- 866
- Published applications
- 975
- Assignees
- 350
- Inventors
- 2,328
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 14 | 0 |
| 1978 | 7 | 0 |
| 1979 | 4 | 0 |
| 1980 | 9 | 0 |
| 1981 | 7 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 8 | 0 |
| 1985 | 9 | 0 |
| 1986 | 9 | 0 |
| 1987 | 13 | 0 |
| 1988 | 12 | 0 |
| 1989 | 26 | 0 |
| 1990 | 23 | 0 |
| 1991 | 16 | 0 |
| 1992 | 31 | 0 |
| 1993 | 33 | 0 |
| 1994 | 17 | 0 |
| 1995 | 16 | 0 |
| 1996 | 17 | 0 |
| 1997 | 6 | 0 |
| 1998 | 9 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 2 |
| 2002 | 5 | 3 |
| 2003 | 1 | 8 |
| 2004 | 6 | 9 |
| 2005 | 5 | 3 |
| 2006 | 3 | 8 |
| 2007 | 4 | 6 |
| 2008 | 3 | 4 |
| 2009 | 2 | 22 |
| 2010 | 2 | 23 |
| 2011 | 9 | 16 |
| 2012 | 9 | 24 |
| 2013 | 18 | 43 |
| 2014 | 17 | 40 |
| 2015 | 23 | 58 |
| 2016 | 32 | 53 |
| 2017 | 36 | 46 |
| 2018 | 34 | 64 |
| 2019 | 54 | 59 |
| 2020 | 54 | 72 |
| 2021 | 34 | 73 |
| 2022 | 45 | 73 |
| 2023 | 36 | 62 |
| 2024 | 52 | 80 |
| 2025 | 43 | 78 |
| 2026 | 21 | 46 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Water based polyimide-powder coating composition and method for manufacturing composite separator for lithium secondary battery using same29 Sep 2026US 12,749,769 B2University Industry Foundation, Yonsei University Wonju Campus
- All-aromatic liquid-crystalline homo-polyimides with aromatic endgroups and crosslinked products therefrom15 Sep 2026US 12,735,534 B2The United States of America as represented by the Secretary of the Air Force
- Polyimide film, high-frequency circuit substrate, and flexible electronic device substrate1 Sep 2026US 12,723,132 B2Ube Corporation
- Polyimide precursor prepared by using polycyclic monomer including trifluoromethyl group and flexible polyimide obtained by using the same18 Aug 2026US 12,709,662 B2Korea Advanced Institute of Science and Technology
- Composition containing sizing agent for inorganic fibers and method for producing inorganic fibers18 Aug 2026US 12,709,838 B2Takemoto Oil & Fat Co., Ltd.
- Polyimides: compositions, methods of making, and parts made therefrom1 Oct 2026US 2026/0297260 A1Dupont Specialty Products USA, LLC
- 3d printing of carbonaceous structures from water1 Oct 2026US 2026/0297263 A1
- Negative photosensitive resin composition, negative photosensitive resin composition coating, negative photosensitive resin composition film, cured layer, and semiconductor device using these1 Oct 2026US 2026/0299418 A1Toray Industries, Inc.
- Photosensitive resin composition, method for producing cured relief pattern, cured film, and semiconductor device20 Aug 2026US 2026/0244101 A1Asahi Kasei Kabushiki Kaisha
- Polyimide film having high dimensional stability and method for preparing same13 Aug 2026US 2026/0234348 A1PI Advanced Materials Co., Ltd.
Most cited
By later US patents
- Insulating adhesive tape, and lead frame and semiconductor device employing the tape253US 5,406,124 AMitsui Toatsu Chemicals, Inc. · 1995
- Novel polyetherimides143US 3,983,093 AGeneral Electric Company · 1976
- 4,4'-Isopropylidene-bis(3- and 4-phenyleneoxyphthalic anhydride)129US 3,972,902 AGeneral Electric Company · 1976
- Hydroxy polyimides and high temperature positive photoresists therefrom123US 4,927,736 AHoechst Celanese Corporation · 1990
- Polyimide gas separation membranes121US 4,717,394 AE. I. Du Pont de Nemours and Company · 1988