C08J 3/245
Differential crosslinking of one polymer with one crosslinking type
Official title: {Differential crosslinking of one polymer with one crosslinking type, e.g. surface crosslinking}
C08J3/245 (Differential crosslinking of one polymer with one crosslinking type) appears on 558 US grants and 709 published applications in this corpus.
Search patents in C08J- Granted patents
- 558
- Published applications
- 709
- Assignees
- 196
- Inventors
- 1,054
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
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| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
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| 2000 | 4 | 0 |
| 2001 | 6 | 3 |
| 2002 | 8 | 10 |
| 2003 | 11 | 9 |
| 2004 | 8 | 11 |
| 2005 | 3 | 11 |
| 2006 | 4 | 9 |
| 2007 | 8 | 15 |
| 2008 | 6 | 15 |
| 2009 | 4 | 11 |
| 2010 | 11 | 28 |
| 2011 | 10 | 31 |
| 2012 | 13 | 33 |
| 2013 | 21 | 23 |
| 2014 | 28 | 22 |
| 2015 | 29 | 35 |
| 2016 | 22 | 30 |
| 2017 | 30 | 37 |
| 2018 | 31 | 40 |
| 2019 | 30 | 46 |
| 2020 | 42 | 46 |
| 2021 | 35 | 51 |
| 2022 | 35 | 58 |
| 2023 | 29 | 36 |
| 2024 | 41 | 37 |
| 2025 | 31 | 37 |
| 2026 | 21 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Preparation method of superabsorbent polymer6 Oct 2026US 12,752,255 B2LG Chem.Ltd.
- Method of preparing superabsorbent polymer8 Sep 2026US 12,729,276 B2LG Chem.Ltd.
- Preparation method of superabsorbent polymer28 Jul 2026US 12,691,434 B2LG Chem.Ltd.
- Surface gradient cross-linking method of ultra-high molecular weight polyethylene and the application thereof16 Jun 2026US 12,655,237 B2b-ONE Medical Biotech Corporation
- Preparation method of super absorbent polymer16 Jun 2026US 12,655,257 B2LG Chem.Ltd.
- Method for producing water-absorbent resin particles, water-absorbent resin particles, absorbent material and absorbent article24 Sep 2026US 2026/0284638 A1Sumitomo Seika Chemicals Co., Ltd.
- Amino-group-containing fiber, method of producing amino-group-containing fiber, product using amino-group-containing fiber, formed body, carbon dioxide sorbent including formed body, method of using carbon dioxide sorbent, and carbon dioxide separation/capture device30 Jul 2026US 2026/0216697 A1Toyobo Co., Ltd.
- Method for the production of superabsorbents23 Jul 2026US 2026/0208154 A1BASF SE
- Water-absorbing resin composition, water-stopping material, and cable23 Jul 2026US 2026/0208156 A1Sumitomo Seika Chemicals Co., Ltd.
- Composition of Super Absorbent Polymer and Preparation Method Thereof23 Jul 2026US 2026/0208157 A1LG Chem.Ltd.
Most cited
By later US patents
- Mechanically stable hydrogel-forming polymers168US 6,414,214 B1BASF SE · 2002
- Composite prosthetic bearing having a crosslinked articulating surface and method for making the same164US 7,819,925 B2DePuy Products, Inc. · 2010
- Method for the secondary cross-linking of hydrogels with N-acyl-2-oxazolidinones159US 6,559,239 B1BASF SE · 2003
- Method for the secondary cross-linking of hydrogels with 2-oxotetrahydro-1,3-oxazines159US 6,657,015 B1BASF SE · 2003
- Superabsorbent surface-treated carboxyalkylated polysaccharides and process for producing same158US 8,461,129 B2Archer Daniels Midland Company · 2013