C13K 1/04
Purifying
C13K1/04 (Purifying) appears on 106 US grants and 129 published applications in this corpus.
Search patents in C13K- Granted patents
- 106
- Published applications
- 129
- Assignees
- 83
- Inventors
- 304
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 4 |
| 2010 | 0 | 3 |
| 2011 | 1 | 7 |
| 2012 | 2 | 2 |
| 2013 | 4 | 10 |
| 2014 | 2 | 15 |
| 2015 | 9 | 23 |
| 2016 | 7 | 10 |
| 2017 | 13 | 10 |
| 2018 | 6 | 13 |
| 2019 | 8 | 9 |
| 2020 | 8 | 5 |
| 2021 | 6 | 4 |
| 2022 | 1 | 1 |
| 2023 | 2 | 5 |
| 2024 | 2 | 3 |
| 2025 | 5 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Physically pretreated biomass composition capable of membrane filtration17 Feb 2026US 12,553,094 B2Cj Cheiljedang Corporation
- Method for hydrolyzing cellulose into sugar to produce spherical capacitive carbon25 Nov 2025US 12,479,732 B2Guangxi Academy of Sciences
- System and method for producing a carbohydrate stream from a cellulosic feedstock27 May 2025US 12,312,624 B2Fluid Quip Technologies, LLC
- Regulated method for separating a mixture13 May 2025US 12,296,283 B2Novasep Process Solutions
- Regulated method for separating a mixture4 Feb 2025US 12,214,297 B2Novasep Process Solutions
- System and method for producing a carbohydrate stream from a cellulosic feedstock28 Aug 2025US 2025/0270606 A1Fluid Quip Technologies, LLC
- Lignocellulosic biomass processing utilizing hydrophobic deep eutectic solvents2 Jan 2025US 2025/0002658 A1University of Kentucky Research Foundation
- Regulated Method For Separating A Mixture14 Mar 2024US 2024/0082752 A1Novasep Process Solutions
- A wood-derived carbohydrate composition14 Mar 2024US 2024/0084409 A1Upm-Kymmene Corporation
- Regulated method for separating a mixture7 Mar 2024US 2024/0075405 A1Novasep Process Solutions
Most cited
By later US patents
- Method of treating biomass material123US 5,536,325 A1996
- Method of treating biomass material82US 5,221,357 A1993
- Strong acid hydrolysis of cellulosic and hemicellulosic materials76US 5,597,714 AArkenol, Inc. · 1997
- Method of producing sugars using strong acid hydrolysis72US 5,726,046 AArkenol, Inc. · 1998
- Method of separating acids and sugars using ion resin separation72US 5,820,687 AArkenol, Inc. · 1998