C08F 218/22
Esters containing nitrogen
Official title: {Esters containing nitrogen}
C08F218/22 (Esters containing nitrogen) appears on 14 US grants and 15 published applications in this corpus.
Search patents in C08F- Granted patents
- 14
- Published applications
- 15
- Assignees
- 15
- Inventors
- 39
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 3 | 2 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 3 |
| 2021 | 1 | 1 |
| 2022 | 2 | 1 |
| 2023 | 1 | 1 |
| 2024 | 1 | 2 |
| 2025 | 3 | 2 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Dual-phase zwitterionic monomers3 Mar 2026US 12,565,554 B2Kunzler Biomedical LLC
- Vinyl alcohol-amino acid ester copolymer7 Oct 2025US 12,435,165 B2Sekisui Chemical Co., Ltd.
- Polymer glass transition temperature manipulation via z/e hydrazone photoswitching7 Oct 2025US 12,435,166 B2Trustees of Dartmouth College
- Dual-phase zwitterionic monomers29 Jul 2025US 12,371,519 B2Envision Biomedical LLC
- Polymer glass transition temperature manipulation via z/e hydrazone photoswitching21 May 2024US 11,987,654 B2Trustees of Dartmouth College
- Dual-phase zwitterionic monomers23 Oct 2025US 2025/0326873 A1Envision Biomedical LLC
- Dual-phase zwitterionic monomers20 Mar 2025US 2025/0092174 A1Envision Biomedical LLC
- Polymer glass transition temperature manipulation via z/e hydrazone photoswitching29 Aug 2024US 2024/0287218 A1Trustees of Dartmouth College
- Dual-phase zwitterionic monomers25 Jan 2024US 2024/0026049 A1Envision Biomedical LLC
- Polymer glass transition temperature manipulation via z/e hydrazone photoswitching27 Apr 2023US 2023/0125498 A1Trustees of Dartmouth College
Most cited
By later US patents
- Poly(vinyl ester) polymers for in vivo nucleic acid delivery2US 8,932,572 B2Arrowhead Madison Inc. · 2015
- Polymer glass transition temperature manipulation via Z/E hydrazone photoswitching1US 11,566,089 B2Trustees of Dartmouth College · 2023
- Poly(vinyl ester) polymers for in vivo nucleic acid delivery1US 9,089,611 B2Arrowhead Madison Inc. · 2015