C08G 2261/3221
Containing one or more nitrogen atoms as the only heteroatom
Official title: containing one or more nitrogen atoms as the only heteroatom, e.g. pyrrole, pyridine or triazole
C08G2261/3221 (Containing one or more nitrogen atoms as the only heteroatom) appears on 219 US grants and 302 published applications in this corpus.
Search patents in C08G- Granted patents
- 219
- Published applications
- 302
- Assignees
- 178
- Inventors
- 743
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 3 |
| 2009 | 2 | 5 |
| 2010 | 2 | 16 |
| 2011 | 5 | 18 |
| 2012 | 12 | 32 |
| 2013 | 12 | 16 |
| 2014 | 14 | 24 |
| 2015 | 22 | 25 |
| 2016 | 15 | 17 |
| 2017 | 14 | 24 |
| 2018 | 20 | 27 |
| 2019 | 22 | 24 |
| 2020 | 20 | 15 |
| 2021 | 19 | 10 |
| 2022 | 15 | 13 |
| 2023 | 8 | 8 |
| 2024 | 6 | 9 |
| 2025 | 6 | 8 |
| 2026 | 2 | 3 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Polycarbonate and method for preparing same29 Sep 2026US 12,747,320 B2LG Chem.Ltd.
- Polyfluorene-based ionomer, anion exchange membrane, method for preparing the polyfluorene-based ionomer and method for fabricating the anion exchange membrane17 Feb 2026US 12,552,897 B2Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University)
- Black particles, black coating material, coating film, and black matrix for color filters19 Aug 2025US 12,391,781 B2Sekisui Chemical Co., Ltd.
- Conductive composition and production method therefor, and water-soluble polymer and production method therefor5 Aug 2025US 12,378,422 B2Mitsubishi Chemical Corporation
- Fluorescent methods and materials for directed biomarker signal amplification22 Jul 2025US 12,366,577 B2Sirigen II Limited
- Method for producing polymer and apparatus for producing polymer25 Jun 2026US 2026/0176414 A1Panasonic Intellectual Property Management Co., Ltd.
- Copolymer7 May 2026US 2026/0125510 A1LG Chem.Ltd.
- Conductive coating comprising copper sulfide/polypyrrole and process of producing the same therefrom22 Jan 2026US 2026/0022258 A1
- Fluorescent Methods and Materials for Directed Biomarker Signal Amplification27 Nov 2025US 2025/0362301 A1
- Thickness-limited electrospray deposition2 Oct 2025US 2025/0303636 A1Rutgers, The State University of New Jersey
Most cited
By later US patents
- Fibrillated polymer compositions and methods of their manufacture118US 10,400,080 B2Sabic Global Technologies B.V. · 2019
- Switchable window based on electrochromic polymers92US 7,256,923 B2University of Washington · 2007
- Fluorescent methods and materials for directed biomarker signal amplification83US 8,158,444 B2Sirigen, Inc. · 2012
- Fluorescent methods and materials for directed biomarker signal amplification62US 8,802,450 B2Sirigen, Inc. · 2014
- Fluorescent methods and materials for directed biomarker signal amplification57US 8,354,239 B2Sirigen, Inc. · 2013