Zika virus purification
US-2018362936-A1 · Dec 20, 2018 · US
Recovery or purification
Recovery or purification · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C12N7/02 |
| Official title | Recovery or purification |
| Display label | Recovery or purification |
| Total patents | 289 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 16 |
| 2017 | 20 |
| 2018 | 40 |
| 2019 | 44 |
| 2020 | 30 |
| 2021 | 31 |
| 2022 | 25 |
| 2023 | 20 |
| 2024 | 27 |
| 2025 | 20 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Production of viruses in avian eggs
US-2018340154-A1 · Nov 29, 2018 · US
Method for harvesting expression products
US-10087423-B2 · Oct 2, 2018 · US
Methods for purification of recombinant AAV vectors
US-10017746-B2 · Jul 10, 2018 · US
Ligand functionalized polymers
US-10005814-B2 · Jun 26, 2018 · US
Recombinant adeno-associated virus particle purification with multiple-step anion exchange chromatography
US-2018163183-A1 · Jun 14, 2018 · US
Cells for producing influenza virus and method for producing influenza virus
US-2018104327-A1 · Apr 19, 2018 · US
Removal of contaminating viruses from aav preparations
US-2018100143-A1 · Apr 12, 2018 · US
Recombinant isfahan viral vectors
US-9932564-B2 · Apr 3, 2018 · US
Detection of particle-contained reverse transcriptase activity
US-2018002767-A1 · Jan 4, 2018 · US
A method for a large scale virus purification
US-2017369854-A1 · Dec 28, 2017 · US
COMPOSITIONS AND METHODS FOR THE PRODUCTION OF scAAV
US-2017362608-A1 · Dec 21, 2017 · US
Removal of contaminating viruses from AAV preparations
US-9840694-B2 · Dec 12, 2017 · US
Novel clostridium perfringens bacteriophage clo-pep-1 and use thereof for inhibiting proliferation of clostridium perfringens
US-2017340685-A1 · Nov 30, 2017 · US
Novel enteroinvasive e. coli bacteriophage esc-cop-4 and use thereof for inhibiting proliferation of enteroinvasive e. coli
US-2017333499-A1 · Nov 23, 2017 · US
Chromatography media and method
US-9815050-B2 · Nov 14, 2017 · US
Complexes of cytomegalovirus proteins
US-2017320916-A1 · Nov 9, 2017 · US
Ligand functionalized polymers
US-9758547-B2 · Sep 12, 2017 · US
Ligand functionalized polymers
US-2017240591-A1 · Aug 24, 2017 · US
Diagnostic test for CSFV antibodies
US-9739778-B2 · Aug 22, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C12N7/02?
- CPC C12N7/02 is the Cooperative Patent Classification code for “Recovery or purification.”
- How many patents are filed under CPC C12N7/02 (Recovery or purification)?
- Our database includes 289 publications tagged with this CPC code.
- Is patent activity under CPC C12N7/02 growing?
- Publication counts under this code: 27 in 2024 vs 20 in 2025 (latest complete years).