C08B 37/0018
Pullulan, i.e. -d-glucan
Official title: {Pullulan, i.e. (alpha-1,4)(alpha-1,6)-D-glucan; Derivatives thereof}
C08B37/0018 (Pullulan, i.e. -d-glucan) appears on 70 US grants and 76 published applications in this corpus.
Search patents in C08B- Granted patents
- 70
- Published applications
- 76
- Assignees
- 75
- Inventors
- 210
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 5 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 5 |
| 2010 | 2 | 8 |
| 2011 | 1 | 4 |
| 2012 | 1 | 4 |
| 2013 | 5 | 8 |
| 2014 | 3 | 1 |
| 2015 | 3 | 3 |
| 2016 | 4 | 7 |
| 2017 | 3 | 5 |
| 2018 | 2 | 2 |
| 2019 | 1 | 3 |
| 2020 | 4 | 6 |
| 2021 | 3 | 2 |
| 2022 | 4 | 1 |
| 2023 | 0 | 2 |
| 2024 | 2 | 4 |
| 2025 | 0 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Linear polysaccharide based film products12 May 2026US 12,622,971 B2Aquestive Therapeutics, Inc.
- Method for extracting pullulan polysaccharide from high-viscosity fermentation broth22 Oct 2024US 12,122,855 B2Tianjin University of Science and Technology
- Terminal alkenyl functional silylated polysaccharides3 Sep 2024US 12,077,655 B2Dow Silicones Corporation
- Method for preparing porous scaffold for tissue engineering, cell culture and cell delivery29 Nov 2022US 11,511,016 B2Inserm (Institut National De La Sante Et De La Recherche Medicale)
- Molded article comprising polysaccharide22 Nov 2022US 11,505,682 B2Nutrition & Biosciences USA 4, Inc.
- Conjugates of polysaccharides and hydrophobic compounds as emulsion stabilizers16 Jul 2026US 2026/0201076 A1BASF SE
- Hydrogel for immobilization of one or more enzyme(s) and method for preparing the same10 Apr 2025US 2025/0115893 A1Gottfried Wilhelm Leibniz Universitat Hannover
- Silicone-modified pullulan, a composition comprising the same, and a cosmetic10 Oct 2024US 2024/0336706 A1Shin-Etsu Chemical Co., Ltd.
- Terminal alkenyl functional silylated polysaccharides8 Aug 2024US 2024/0262987 A1Dow Silicones Corporation
- Method for extracting pullulan polysaccharide from high-viscosity fermentation broth25 Jul 2024US 2024/0247082 A1Tianjin University of Science and Technology
Most cited
By later US patents
- Diester crosslinked polyglucan hydrogels and reticulated sponges thereof286US 4,002,173 AInternational Paper Company · 1977
- Enzyme immobilization with pullulan gel258US 4,247,642 ASumitomo Chemical Company, Limited · 1981
- High pullulan content product, and its preparation and uses71US 5,518,902 AKabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo · 1996
- Association complex comprising pullulan and polyethylene glycol, and preparation and uses of the same62US 4,927,636 A501 Kabushiki Kaisha Hayashibara Kagaku Kenkyujo · 1990
- Camptothecin derivatives52US 5,892,043 ATanabe Seiyaku Co., Ltd. · 1999