D21H 17/32
Guar or other polygalactomannan gum
Official title: Guar {or other polygalactomannan} gum
D21H17/32 (Guar or other polygalactomannan gum) appears on 54 US grants and 35 published applications in this corpus.
Search patents in D21H- Granted patents
- 54
- Published applications
- 35
- Assignees
- 36
- Inventors
- 141
- Latest grant
- 31 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 1 |
| 2002 | 3 | 5 |
| 2003 | 3 | 3 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 2 | 3 |
| 2007 | 1 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 2 |
| 2014 | 1 | 1 |
| 2015 | 0 | 2 |
| 2016 | 1 | 2 |
| 2017 | 2 | 2 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 2 |
| 2021 | 1 | 2 |
| 2022 | 2 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 2 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Paper strength improving additives, their manufacture and use in paper making31 Oct 2023US 11,802,376 B2Kemira Oyj
- Oyster paper and manufacturing method thereof2 Aug 2022US 11,401,391 B2Don Jia Poly Plastic Ltd.
- Method to produce a fibrous product comprising microfibrillated cellulose10 May 2022US 11,326,306 B2Stora Enso OYJ
- Moisture-proof, fibrous substrate having adjustable moisture and wet strength, and method for production thereof5 Oct 2021US 11,136,720 B2Chem&P GmbH & Co. KG
- Method to produce a film comprising microfibrillated cellulose and an amphoteric polymer3 Mar 2020US 10,577,747 B2Stora Enso OYJ
- Water-based barrier coating of native substances for paper, cardboard or moulded pulp26 Jun 2025US 2025/0207332 A1CHT Germany GmbH
- Method of preparing filter for cigarettes29 Aug 2024US 2024/0284967 A1Kt&G Corporation
- Filter for cigarettes and cigarette including the same25 Jul 2024US 2024/0245106 A1Kt&G Corporation
- Plant-Based Fibrous Product For Thermoforming5 Oct 2023US 2023/0312844 A1Mativ Holdings, Inc.
- Paper strength improving additives, their manufacture and use in paper making22 Jul 2021US 2021/0222368 A1Kemira Oyj
Most cited
By later US patents
- Retention and drainage aid for papermaking106US 4,927,498 AE. I. Du Pont de Nemours and Company · 1990
- Polyaluminosilicate process91US 5,176,891 AEka Chemicals AB · 1993
- Dry strength additive for paper91US 5,338,406 AHercules Incorporated · 1994
- Process for the production of cellulose fibre containing products in sheet or web form68US 5,277,764 AEka Nobel AB · 1994
- Modified polysaccharides containing amphiphillic hydrocarbon moieties66US 6,517,678 B1Kimberly-Clark Worldwide, Inc. · 2003