Processing biomass
US-9745609-B2 · Aug 29, 2017 · US
Methionine; Cysteine; Cystine
Methionine; Cysteine; Cystine · 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 | C12P13/12 |
| Official title | Methionine; Cysteine; Cystine |
| Display label | Methionine; Cysteine; Cystine |
| Total patents | 245 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 29 |
| 2016 | 25 |
| 2017 | 23 |
| 2018 | 20 |
| 2019 | 39 |
| 2020 | 24 |
| 2021 | 21 |
| 2022 | 13 |
| 2023 | 20 |
| 2024 | 12 |
| 2025 | 16 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Microorganism producing o-acetyl-homoserine and method for producing o-acetylhomoserine using the same
US-2017137853-A1 · May 18, 2017 · US
Method of producing chemical by continuous fermentation and continuous fermentation apparatus
US-9644221-B2 · May 9, 2017 · US
O-succinylhomoserine producing microorganism and method for producing o-succinylhomoserine using same
US-2017101656-A1 · Apr 13, 2017 · US
Method for Producing L-Amino Acids in Corynebacteria Using a Glycine Cleavage System
US-2017051324-A1 · Feb 23, 2017 · US
Process for the fermentative preparation of sulphur-containing amino acids
US-9562245-B2 · Feb 7, 2017 · US
METHOD FOR PRODUCING AN L-AMINO ACID USING A BACTERIUM OF THE FAMILY ENTEROBACTERIACEAE HAVING AN ATTENUATED EXPRESSION OF A gshA GENE
US-2016348089-A1 · Dec 1, 2016 · US
Method for Producing an L-Amino Acid Using a Bacterium of the Family Enterobacteriaceae Having Overexpressed the yajL Gene
US-2016340681-A1 · Nov 24, 2016 · US
Cell suitable for fermentation of a mixed sugar composition
US-9499841-B2 · Nov 22, 2016 · US
Compositions and methods for recovery of stranded gas and oil
US-2016333307-A1 · Nov 17, 2016 · US
Compositions and methods of producing methionine
US-9493801-B2 · Nov 15, 2016 · US
Method for producing an L-amino acid using a bacterium of the family enterobacteriaceae having overexpressed the yajL gene
US-9493777-B1 · Nov 15, 2016 · US
Microorganisms for production of o-succinyl homoserine and method for production of o-succinyl homoserine using the same
US-2016304920-A1 · Oct 20, 2016 · US
Microorganisms for production of o-succinylhomoserine and method for production of o-succinylhomoserine using the same
US-2016304919-A1 · Oct 20, 2016 · US
L-amino acid-producing bacterium and a method for producing an L-amino acid
US-9458206-B2 · Oct 4, 2016 · US
Microorganism and method for production of amino acids by fermentation
US-2016265072-A2 · Sep 15, 2016 · US
L-amino acid-containing feedstuff additive
US-2016255863-A1 · Sep 8, 2016 · US
Method for Producing an L-Amino Acid Using a Bacterium of the Family Enterobacteriaceae Having Attenuated Expression of a Phosphate Transporter-Encoding Gene
US-2016201100-A1 · Jul 14, 2016 · US
Method for preparing optically active amino acid using cosubstrate shuttling of transaminase
US-9376694-B2 · Jun 28, 2016 · US
Preparation of process of L-methionine
US-9365877-B2 · Jun 14, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C12P13/12?
- CPC C12P13/12 is the Cooperative Patent Classification code for “Methionine; Cysteine; Cystine.”
- How many patents are filed under CPC C12P13/12 (Methionine; Cysteine; Cystine)?
- Our database includes 245 publications tagged with this CPC code.
- Is patent activity under CPC C12P13/12 growing?
- Publication counts under this code: 12 in 2024 vs 16 in 2025 (latest complete years).