D21H 17/30
Alginic acid or alginates
D21H17/30 (Alginic acid or alginates) appears on 25 US grants and 37 published applications in this corpus.
Search patents in D21H- Granted patents
- 25
- Published applications
- 37
- Assignees
- 31
- Inventors
- 91
- Latest grant
- 10 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 3 |
| 2011 | 1 | 0 |
| 2012 | 1 | 2 |
| 2013 | 2 | 2 |
| 2014 | 1 | 4 |
| 2015 | 2 | 3 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 2 | 2 |
| 2019 | 1 | 2 |
| 2020 | 1 | 3 |
| 2021 | 1 | 2 |
| 2022 | 1 | 1 |
| 2023 | 1 | 3 |
| 2024 | 2 | 2 |
| 2025 | 0 | 4 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluorocarbon-free and bio-based oil and water barrier materials comprising polyelectrolyte complexes10 Dec 2024US 12,163,291 B2Organoclick AB
- Preparation method of tea residue fiber raw materials and application thereof22 Oct 2024US 12,123,142 B2
- Paper strength improving additives, their manufacture and use in paper making31 Oct 2023US 11,802,376 B2Kemira Oyj
- Bio-based PEC compositions as binders for fiber based materials, textiles, woven and nonwoven materials3 May 2022US 11,319,673 B2Organoclick AB
- 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
- Packaging item23 Apr 2026US 2026/0110140 A1Notpla Limited
- Seaweed and cellulose based film26 Mar 2026US 2026/0085206 A1B'zeos Switzerland SA
- Novel aluminum-free humidity-regulating lining paper for cigarettes and preparation method thereof5 Mar 2026US 2026/0061733 A1China National Pulp & Paper Research Inst. Co.,Ltd
- Sheet material with desiccant properties and uses thereof13 Nov 2025US 2025/0346420 A1Nicoventures Trading Limited
- Biodegradable agricultural mulch films from compositions of wastepaper pulp and calcium alginate and manufacturing methods4 Sep 2025US 2025/0275507 A1
Most cited
By later US patents
- Process for manufacturing of formed products73US 4,377,440 A1983
- Aqueous systems comprising an ionic polymer and a viscosity promoter, processes for their preparation, and uses thereof34US 6,359,040 B1Hercules Incorporated · 2002
- Paper making process utilizing fillers with hardened envelopes of cationic starch33US 4,710,270 A1987
- Paper substrates containing high surface sizing and low internal sizing and having high dimensional stability26US 7,736,466 B2International Paper Company · 2010
- Paper substrates containing high surface sizing and low internal sizing and having high dimensional stability24US 7,967,953 B2International Paper Company · 2011