C08J 2300/14
Water soluble or water swellable polymers
Official title: Water soluble or water swellable polymers, e.g. aqueous gels
C08J2300/14 (Water soluble or water swellable polymers) appears on 576 US grants and 556 published applications in this corpus.
Search patents in C08J- Granted patents
- 576
- Published applications
- 556
- Assignees
- 233
- Inventors
- 1,211
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 6 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 8 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 7 | 0 |
| 1989 | 2 | 0 |
| 1990 | 11 | 0 |
| 1991 | 2 | 0 |
| 1992 | 12 | 0 |
| 1993 | 4 | 0 |
| 1994 | 9 | 0 |
| 1995 | 6 | 0 |
| 1996 | 8 | 0 |
| 1997 | 8 | 0 |
| 1998 | 17 | 0 |
| 1999 | 14 | 0 |
| 2000 | 17 | 0 |
| 2001 | 16 | 7 |
| 2002 | 17 | 21 |
| 2003 | 16 | 32 |
| 2004 | 16 | 23 |
| 2005 | 10 | 29 |
| 2006 | 13 | 23 |
| 2007 | 15 | 17 |
| 2008 | 16 | 17 |
| 2009 | 12 | 20 |
| 2010 | 14 | 29 |
| 2011 | 14 | 19 |
| 2012 | 17 | 34 |
| 2013 | 21 | 13 |
| 2014 | 20 | 13 |
| 2015 | 15 | 14 |
| 2016 | 15 | 14 |
| 2017 | 21 | 20 |
| 2018 | 12 | 22 |
| 2019 | 16 | 30 |
| 2020 | 22 | 35 |
| 2021 | 14 | 24 |
| 2022 | 15 | 18 |
| 2023 | 15 | 31 |
| 2024 | 32 | 18 |
| 2025 | 14 | 13 |
| 2026 | 13 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Water-soluble film and packaging25 Aug 2026US 12,715,966 B2Kuraray Co., Ltd.
- Water-soluble film and package18 Aug 2026US 12,709,449 B2Kuraray Co., Ltd.
- Gel compositions with tunable hardness4 Aug 2026US 12,698,364 B2GelSight, Inc.
- Method for recycling water absorbent resin16 Jun 2026US 12,654,151 B2Nippon Shokubai Co., Ltd.
- Absorbent pad for leak mitigation21 Apr 2026US 12,605,649 B2Microsoft Technology Licensing, LLC
- Water soluble instruments and containers20 Aug 2026US 2026/0242601 A1
- Absorbent pad for leak mitigation6 Aug 2026US 2026/0225000 A1Microsoft Technology Licensing, LLC
- Hydrogel Particle Encapsulated Viable Cells for In Vivo Regenerative Treatment30 Jul 2026US 2026/0216249 A1CellDrop Biosciences, Inc.
- Interactive graphene polymer30 Jul 2026US 2026/0217922 A1MITO Material Solutions, Inc.
- Water-absorbing resin composition, water-stopping material, and cable23 Jul 2026US 2026/0208156 A1Sumitomo Seika Chemicals Co., Ltd.
Most cited
By later US patents
- Aqueous-liquid and blood-absorbing powdery reticulated polymers, process for producing the same and their use as absorbents in sanitary articles299US 5,409,771 AChemische Fabrik Stockhausen GmbH · 1995
- Water absorbing agent285US 4,734,478 ANippon Shokubai Kagaku Kogyo Co., Ltd. · 1988
- Cross-linked, water-swellable polymer microgels255US 4,172,066 AThe Dow Chemical Company · 1979
- Process for the production of polymers and aqueous solutions thereof215US 4,599,379 AAllied Colloids Limited · 1986
- Process for the preparation of aqueous dispersions of particles of water-soluble polymers and the particles obtained181US 6,544,503 B1C. R. Bard, Inc. · 2003