C08L 79/08
Polyimides
Official title: Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
C08L79/08 (Polyimides) appears on 2,288 US grants and 2,474 published applications in this corpus.
Search patents in C08L- Granted patents
- 2,288
- Published applications
- 2,474
- Assignees
- 846
- Inventors
- 5,832
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 18 | 0 |
| 1978 | 15 | 0 |
| 1979 | 12 | 0 |
| 1980 | 13 | 0 |
| 1981 | 22 | 0 |
| 1982 | 20 | 0 |
| 1983 | 24 | 0 |
| 1984 | 28 | 0 |
| 1985 | 31 | 0 |
| 1986 | 20 | 0 |
| 1987 | 22 | 0 |
| 1988 | 19 | 0 |
| 1989 | 39 | 0 |
| 1990 | 40 | 0 |
| 1991 | 44 | 0 |
| 1992 | 66 | 0 |
| 1993 | 53 | 0 |
| 1994 | 49 | 0 |
| 1995 | 36 | 0 |
| 1996 | 42 | 0 |
| 1997 | 32 | 0 |
| 1998 | 26 | 0 |
| 1999 | 39 | 0 |
| 2000 | 32 | 0 |
| 2001 | 30 | 7 |
| 2002 | 25 | 39 |
| 2003 | 33 | 37 |
| 2004 | 26 | 50 |
| 2005 | 26 | 47 |
| 2006 | 30 | 48 |
| 2007 | 24 | 64 |
| 2008 | 18 | 76 |
| 2009 | 29 | 91 |
| 2010 | 42 | 115 |
| 2011 | 50 | 112 |
| 2012 | 60 | 117 |
| 2013 | 78 | 107 |
| 2014 | 84 | 102 |
| 2015 | 91 | 78 |
| 2016 | 72 | 97 |
| 2017 | 59 | 75 |
| 2018 | 59 | 147 |
| 2019 | 74 | 147 |
| 2020 | 115 | 148 |
| 2021 | 106 | 163 |
| 2022 | 89 | 158 |
| 2023 | 97 | 143 |
| 2024 | 89 | 134 |
| 2025 | 84 | 108 |
| 2026 | 51 | 64 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- Resin mixture, method of producing resin mixture, stretch blow molded product, and method of producing stretch blow molded product22 Sep 2026US 12,742,040 B2Canon Kabushiki Kaisha
- Curable film composition, curable film, and cured product thereof22 Sep 2026US 12,742,059 B2Thintronics, Inc.
- All-aromatic liquid-crystalline homo-polyimides with aromatic endgroups and crosslinked products therefrom15 Sep 2026US 12,734,747 B2The United States of America as represented by the Secretary of the Air Force
- All-aromatic liquid-crystalline homo-polyimides with aromatic endgroups and crosslinked products therefrom15 Sep 2026US 12,734,748 B2The United States of America as represented by the Secretary of the Air Force
- Maleimide resin, resin composition, cured product, sheet, laminate, and printed wiring board1 Oct 2026US 2026/0297264 A1Resonac Corporation
- Resin composition and article made therefrom1 Oct 2026US 2026/0297327 A1Elite Material Co., Ltd.
- Resin composition, and prepreg and use thereof10 Sep 2026US 2026/0265473 A1Guangdong Hinno-Tech Co., Ltd.
- Intermediate transfer body, transfer unit, and image forming apparatus27 Aug 2026US 2026/0252005 A1FUJIFILM Business Innovation Corp.
- Photosensitive composition, transfer film, method for manufacturing laminate, laminate, and semiconductor package27 Aug 2026US 2026/0256003 A1FUJIFILM Corporation
Most cited
By later US patents
- Kink-free spiral-wound catheter385US 5,454,795 ATarget Therapeutics, Inc. · 1995
- Kink-free spiral-wound catheter259US 5,695,483 ATarget Therapeutics, Inc. · 1997
- Adhesive tapes247US 5,277,972 ATomoegawa Paper Co., Ltd. · 1994
- Adhesive tapes220US 5,683,806 ATomoegawa Paper Co., Ltd. · 1997
- Kink-free spiral-wound catheter178US 5,876,386 ATarget Therapeutics, Inc. · 1999