C08G 2261/3142
Fluorene-based
Official title: fluorene-based, e.g. fluorene, indenofluorene, or spirobifluorene
C08G2261/3142 (Fluorene-based) appears on 471 US grants and 673 published applications in this corpus.
Search patents in C08G- Granted patents
- 471
- Published applications
- 673
- Assignees
- 205
- Inventors
- 1,190
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2003 | 0 | 2 |
| 2004 | 1 | 3 |
| 2005 | 1 | 6 |
| 2006 | 3 | 3 |
| 2007 | 3 | 4 |
| 2008 | 2 | 6 |
| 2009 | 2 | 10 |
| 2010 | 3 | 42 |
| 2011 | 7 | 38 |
| 2012 | 11 | 50 |
| 2013 | 28 | 51 |
| 2014 | 26 | 49 |
| 2015 | 35 | 52 |
| 2016 | 47 | 45 |
| 2017 | 51 | 52 |
| 2018 | 43 | 49 |
| 2019 | 46 | 33 |
| 2020 | 41 | 35 |
| 2021 | 25 | 33 |
| 2022 | 17 | 36 |
| 2023 | 25 | 22 |
| 2024 | 28 | 29 |
| 2025 | 16 | 14 |
| 2026 | 10 | 9 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Polymer, a composition, and an electroluminescent device1 Sep 2026US 12,727,375 B2Samsung Electronics Co., Ltd.
- Anion exchange polymers and membranes for electrolysis25 Aug 2026US 12,715,968 B2Uop LLC
- Fluorine-containing compound having sulfonic acid group and polymer electrolyte fuel cell25 Aug 2026US 12,719,070 B2Nissan Chemical Corporation
- Blue-excitable water-solvated polymeric dyes14 Jul 2026US 12,679,978 B2Becton, Dickinson and Company
- Hyperbranched polybenzene, preparation method and use thereof2 Jun 2026US 12,643,978 B2Soochow University
- Photoactive macromolecules and uses thereof30 Jul 2026US 2026/0217904 A1
- Method for producing homocoupling reaction product9 Jul 2026US 2026/0193241 A1National University Corporation Hokkaido University
- Copolymer for anion exchange membrane and anion exchange membrane including the same9 Jul 2026US 2026/0193394 A1SK Innovation Co., Ltd.
- Method for manufacturing cured film and use of the same2 Jul 2026US 2026/0186416 A1Merck Patent GmbH
- Ladder polymers and improved methods of making the same28 May 2026US 2026/0146125 A1Osmoses Inc.
Most cited
By later US patents
- Fluorescent methods and materials for directed biomarker signal amplification83US 8,158,444 B2Sirigen, Inc. · 2012
- Reagents for directed biomarker signal amplification73US 8,575,303 B2Sirigen Group Limited · 2013
- Signal amplified biological detection with conjugated polymers66US 8,969,509 B2Sirigen, Inc. · 2015
- Reagents for directed biomarker signal amplification64US 8,362,193 B2Sirigen Group Limited · 2013
- Fluorescent methods and materials for directed biomarker signal amplification62US 8,802,450 B2Sirigen, Inc. · 2014