B01J 2220/68
Superabsorbents
B01J2220/68 (Superabsorbents) appears on 331 US grants and 493 published applications in this corpus.
Search patents in B01J- Granted patents
- 331
- Published applications
- 493
- Assignees
- 147
- Inventors
- 826
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 2 | 1 |
| 2002 | 1 | 5 |
| 2003 | 5 | 8 |
| 2004 | 4 | 12 |
| 2005 | 5 | 12 |
| 2006 | 3 | 9 |
| 2007 | 4 | 11 |
| 2008 | 3 | 13 |
| 2009 | 6 | 14 |
| 2010 | 10 | 16 |
| 2011 | 12 | 14 |
| 2012 | 10 | 15 |
| 2013 | 18 | 11 |
| 2014 | 11 | 20 |
| 2015 | 16 | 22 |
| 2016 | 17 | 15 |
| 2017 | 8 | 15 |
| 2018 | 19 | 20 |
| 2019 | 15 | 32 |
| 2020 | 22 | 25 |
| 2021 | 22 | 34 |
| 2022 | 15 | 54 |
| 2023 | 20 | 36 |
| 2024 | 24 | 34 |
| 2025 | 28 | 27 |
| 2026 | 31 | 18 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Preparation method of superabsorbent polymer6 Oct 2026US 12,752,255 B2LG Chem.Ltd.
- Continuous polymerization reactor for super absorbent polymer and continuous polymerization reaction system6 Oct 2026US 12,753,249 B2LG Chem.Ltd.
- Preparation method for superabsorbent polymer8 Sep 2026US 12,728,402 B2LG Chem.Ltd.
- Particulate water-absorbing agent and method for producing the same11 Aug 2026US 12,702,967 B2Nippon Shokubai Co., Ltd.
- Superabsorbent polymers based on copolymers of charged monomers and neutral monomers4 Aug 2026US 12,698,356 B2Kimberly-Clark Worldwide, Inc.
- Composite absorbent material17 Sep 2026US 2026/0272729 A1The Procter & Gamble Company
- Super Absorbent Polymer13 Aug 2026US 2026/0233196 A1LG Chem.Ltd.
- Methods of environment remediation using a pelletized composition for liquid solidification and moisture retention16 Jul 2026US 2026/0199872 A1
- Preparation Method of Super Absorbent Polymer16 Jul 2026US 2026/0199876 A1LG Chem.Ltd.
- Super absorbent polymer materials9 Jul 2026US 2026/0193414 A1Planet Smart Ltd
Most cited
By later US patents
- Plasma concentrate apparatus and method289US 6,905,612 B2Hanuman LLC · 2005
- Powdery, cross-linked polymers which absorb aqueous liquids and blood, method for the production thereof and their use84US 6,605,673 B1Stockhausen GmbH & Co. KG · 2003
- Apparently dry waste management system74US 6,736,977 B1Eastman Kodak Company · 2004
- Reactive compositions for fluid treatment47US 6,861,002 B2Watervisions International, Inc. · 2005
- Process for preparing superabsorbent-containing composites43US 6,376,011 B1Kimberly-Clark Worldwide, Inc. · 2002