C08G 2261/71
Purification
C08G2261/71 (Purification) appears on 26 US grants and 45 published applications in this corpus.
Search patents in C08G- Granted patents
- 26
- Published applications
- 45
- Assignees
- 30
- Inventors
- 103
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 1 |
| 2016 | 1 | 3 |
| 2017 | 0 | 1 |
| 2018 | 2 | 5 |
| 2019 | 2 | 4 |
| 2020 | 5 | 6 |
| 2021 | 1 | 11 |
| 2022 | 1 | 3 |
| 2023 | 6 | 0 |
| 2024 | 1 | 4 |
| 2025 | 3 | 1 |
| 2026 | 1 | 3 |
By publication year. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process for producing functionalized polythiophenes28 Jul 2026US 12,692,343 B2Heraeus Epurio GmbH
- Method for producing a polymer film16 Sep 2025US 12,415,938 B2Turun Yliopisto
- Method for producing a polymer film27 May 2025US 12,312,492 B2Turun Yliopisto
- Poly(ether ketone ketone) (PEKK) composites13 May 2025US 12,297,321 B2Cytec Industries Inc.
- Ring-opened copolymer14 May 2024US 11,981,773 B2Zeon Corporation
- Process for producing functionalized polythiophenes8 Oct 2026US 2026/0308308 A1
- Liquid phase extraction of tritiated and radiation-generated impurities from organic and organosilicon oils23 Apr 2026US 2026/0109815 A1Battelle Savannah River Alliance, LLC
- High purity sulfonated thiophene monomers26 Feb 2026US 2026/0055228 A1Heraeus Epurio GmbH
- Claims method for producing a polymer film27 Nov 2025US 2025/0361420 A1Turun Yliopisto
- Process for producing functionalized polythiophenes14 Nov 2024US 2024/0376255 A1Heraeus Epurio GmbH
Most cited
By later US patents
- Dispersions comprising polythiophenes with a defined content of thiophene monomer12US 9,053,839 B2Heraeus Precious Metals GmbH & Co. KG · 2015
- Process for preparing polyalkenamers for packaging applications2US 10,570,249 B2Evonik Operations GmbH · 2020
- Process for preparing polyalkenamers for packaging applications2US 10,689,483 B2Evonik Operations GmbH · 2020
- Process for preparing polyalkenamers for packaging applications2US 10,829,590 B2Evonik Operations GmbH · 2020
- Hydrogenated norbornene ring-opened polymer, and method of producing the same1US 11,807,712 B2Zeon Corporation · 2023