C07G 1/00
Low-molecular-weight derivatives of lignin
Official title: Low-molecular-weight derivatives of lignin (high-molecular-weight derivatives of lignin {C08H6/00})
C07G1/00 (Low-molecular-weight derivatives of lignin) appears on 400 US grants and 593 published applications in this corpus.
Search patents in C07G- Granted patents
- 400
- Published applications
- 593
- Assignees
- 270
- Inventors
- 1,042
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 1 |
| 2002 | 0 | 1 |
| 2003 | 0 | 3 |
| 2004 | 2 | 4 |
| 2005 | 0 | 2 |
| 2006 | 1 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 3 |
| 2009 | 0 | 5 |
| 2010 | 2 | 17 |
| 2011 | 4 | 10 |
| 2012 | 7 | 13 |
| 2013 | 16 | 31 |
| 2014 | 16 | 45 |
| 2015 | 23 | 64 |
| 2016 | 41 | 64 |
| 2017 | 35 | 34 |
| 2018 | 40 | 35 |
| 2019 | 27 | 36 |
| 2020 | 28 | 36 |
| 2021 | 21 | 42 |
| 2022 | 30 | 41 |
| 2023 | 21 | 30 |
| 2024 | 28 | 38 |
| 2025 | 32 | 27 |
| 2026 | 11 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process of making sulfonated lignin-based compositions, sulfonated lignin-based compositions so-obtained and their use29 Sep 2026US 12,747,259 B2Rg Dispersants Ltd.
- Method and an apparatus for washing a crude lignin, a soluble carbohydrate containing fraction, a solid fraction and their use28 Jul 2026US 12,692,285 B2Upm-Kymmene Corporation
- Method for preparing cellulose and lignin oil by depolymerizing lignocellulose without exogenous hydrogen30 Jun 2026US 12,668,669 B2East China University of Science and Technology
- Methods for lignin extraction16 Jun 2026US 12,655,297 B2Canon Virginia, Inc.
- Method for producing oxidized lignins and system for producing oxidized lignins19 May 2026US 12,628,747 B2Rockwool A/S
- A method for producing a carbon material from lignin27 Aug 2026US 2026/0250134 A1Stora Enso OYJ
- A method for recovering lignin microparticles from spent pulping liquor, a method for preparing carbonized lignin, lignin microparticles, a coating composition, a resin, an electrochemical energy storage device carbonized lignin microparticles, and use of the lignin microparticles and the carbonized lignin microparticles13 Aug 2026US 2026/0234867 A1Teknologian tutkimuskeskus VTT Oy
- Acylation combined with esterification of lignin-derived material6 Aug 2026US 2026/0225989 A1
- Methods of separating lignin deconstruction feedstocks using centrifugal partition chromatography30 Jul 2026US 2026/0216619 A1Wisconsin Alumni Research Foundation
- Iron supply agents for plant growth2 Jul 2026US 2026/0184648 A1ReMA Corp.
Most cited
By later US patents
- Silicone condensation reaction47US 7,064,173 B2General Electric Company · 2006
- Compositions based on lignin derivatives43US 6,172,204 B2Regents of the University of Minnesota · 2001
- Catalytic method for the preparation of lignin phenol surfactants in organic solvents33US 6,100,385 ATexaco Inc. · 2000
- Method of recovering lignin from pulp and paper sludge26US 5,777,086 AThermo Fibergen, Inc. · 1998
- Methods for isolating and harvesting lignin and isolated lignin preparations produced using the methods25US 8,053,566 B2Vertichem Corporation · 2011