Multi-Layer Film Comprising Nutrient Material for Cell Culture, Method for Preparing Same, and Use of Same
US-2023383260-A1 · Nov 30, 2023 · US
Cellulose or derivatives thereof
Cellulose or derivatives thereof · 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 | C12N11/12 |
| Official title | Cellulose or derivatives thereof |
| Display label | Cellulose or derivatives thereof |
| Total patents | 75 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 4 |
| 2017 | 7 |
| 2018 | 4 |
| 2019 | 8 |
| 2020 | 9 |
| 2021 | 8 |
| 2022 | 13 |
| 2023 | 7 |
| 2024 | 8 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Carrier and testing method
US-11795446-B2 · Oct 24, 2023 · US
Bioassisted treatment of microbiologically influenced corrosion in petroleum transporting pipelines
US-11624116-B2 · Apr 11, 2023 · US
Composite resin molded product with adjusted decomposition rate, and production method therefor
US-2022348727-A1 · Nov 3, 2022 · US
Hydrogel compositions comprising protist cells
US-2022340863-A1 · Oct 27, 2022 · US
Method for loading of microorganisms on multiphase biomaterials
US-2022267719-A1 · Aug 25, 2022 · US
Method of immobilising a protein on a substrate
US-2022249733-A1 · Aug 11, 2022 · US
Method for loading of microorganisms on multiphase biomaterials
US-2022241176-A1 · Aug 4, 2022 · US
Biochar as a microbial carrier
US-11384031-B2 · Jul 12, 2022 · US
Method for constructing trehalose multi-enzyme complex in vitro mediated by artificial scaffold protein
US-2022204965-A1 · Jun 30, 2022 · US
Immobilized thermostable trehalose synthase and method for producing trehalose and trehalulose by using same
US-2022186204-A1 · Jun 16, 2022 · US
Blood treatment with inactivation of circulating nucleic acids
US-11344661-B2 · May 31, 2022 · US
3D synthetic tissue hydrogels
US-11312950-B2 · Apr 26, 2022 · US
Carrier for enzyme immobilization use, and immobilized enzyme
US-2022049237-A1 · Feb 17, 2022 · US
Method for ex vivo treating blood or plasma
US-11242516-B2 · Feb 8, 2022 · US
Production method for immobilized microorganisms and production method for amino acid using the same
US-2022025351-A1 · Jan 27, 2022 · US
Cellulose-encapsulated oil emulsions and methods for cellulase regeneration
US-2021348153-A1 · Nov 11, 2021 · US
Bioassisted treatment of microbiologically influenced corrosion in petroleum transporting pipelines
US-2021324526-A1 · Oct 21, 2021 · US
Carrier and testing method
US-2021292739-A1 · Sep 23, 2021 · US
Method for producing lysine by utilizing adsorption and immobilized fermentation of recombinant corynebacterium glutamicum
US-11098331-B2 · Aug 24, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C12N11/12?
- CPC C12N11/12 is the Cooperative Patent Classification code for “Cellulose or derivatives thereof.”
- How many patents are filed under CPC C12N11/12 (Cellulose or derivatives thereof)?
- Our database includes 75 publications tagged with this CPC code.
- Is patent activity under CPC C12N11/12 growing?
- Publication counts under this code: 8 in 2024 vs 3 in 2025 (latest complete years).