C09D 179/04
Polycondensates having nitrogen-containing heterocyclic rings in the main chain
Official title: Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
C09D179/04 (Polycondensates having nitrogen-containing heterocyclic rings in the main chain) appears on 1,204 US grants and 1,675 published applications in this corpus.
Search patents in C09D- Granted patents
- 1,204
- Published applications
- 1,675
- Assignees
- 573
- Inventors
- 3,475
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 8 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 11 | 0 |
| 1993 | 7 | 0 |
| 1994 | 6 | 0 |
| 1995 | 11 | 0 |
| 1996 | 15 | 0 |
| 1997 | 4 | 0 |
| 1998 | 15 | 0 |
| 1999 | 16 | 0 |
| 2000 | 6 | 0 |
| 2001 | 4 | 5 |
| 2002 | 14 | 7 |
| 2003 | 6 | 9 |
| 2004 | 11 | 26 |
| 2005 | 6 | 12 |
| 2006 | 14 | 17 |
| 2007 | 8 | 21 |
| 2008 | 6 | 22 |
| 2009 | 8 | 25 |
| 2010 | 12 | 47 |
| 2011 | 17 | 37 |
| 2012 | 21 | 43 |
| 2013 | 21 | 70 |
| 2014 | 36 | 95 |
| 2015 | 57 | 154 |
| 2016 | 93 | 131 |
| 2017 | 82 | 128 |
| 2018 | 92 | 128 |
| 2019 | 110 | 121 |
| 2020 | 106 | 118 |
| 2021 | 67 | 102 |
| 2022 | 76 | 94 |
| 2023 | 73 | 83 |
| 2024 | 56 | 61 |
| 2025 | 46 | 61 |
| 2026 | 18 | 58 |
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
- Polydopamine composite material and manufacturing method thereof15 Sep 2026US 12,735,604 B2Korea Institute of Science and Technology
- Aromatic polyimide powder for molded body, molded body using same, method for improving mechanical strength of molded body8 Sep 2026US 12,729,272 B2Ube Corporation
- Polymer compositions for forming an enamel coating on a wire21 Jul 2026US 12,686,790 B2AdvanSix Resins & Chemicals LLC
- Resin composition and article made therefrom30 Jun 2026US 12,668,717 B1Elite Material Co., Ltd.
- Reduced Carbon Footprint Painting Process for Waterborne Paint and Composition8 Oct 2026US 2026/0308413 A1Toyota Jidosha Kabushiki Kaisha
- Polyamide-imide-based film, preparation method thereof, and cover window and display device comprising the same8 Oct 2026US 2026/0308414 A1Microworks Solutions Co., Ltd.
- Insulation film and printed circuit board comprising same1 Oct 2026US 2026/0297376 A1LG Chem.Ltd.
- Method for manufacturing semiconductor device, and curable resin composition1 Oct 2026US 2026/0305463 A1Resonac Corporation
- Methods of preparing coated substrates and non-aqueous, curable film-forming compositions used therefor24 Sep 2026US 2026/0286165 A1PPG Industries Ohio, Inc.
Most cited
By later US patents
- Coatings comprising carbon nanotubes and methods for forming same164US 7,060,241 B2Eikos, Inc. · 2006
- Polyarylether ketone imide adhesives118US 10,011,685 B2The Boeing Company · 2018
- Conformal coatings comprising carbon nanotubes117US 7,118,693 B2Eikos, Inc. · 2006
- Polyimidosiloxane resin and composition thereof and method of applying same61US 5,252,703 AUbe Industries, Ltd. · 1993
- Coating compositions containing fluorocarbons, polyarylene sulfides and polyimides57US 4,139,576 ADaikin Kogyo Co., Ltd. · 1979