Methods of making polypeptides
US-10519278-B2 · Dec 31, 2019 · US
Preparatory processes
Preparatory processes · 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 | C08G69/04 |
| Official title | Preparatory processes |
| Display label | Preparatory processes |
| Total patents | 136 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 9 |
| 2017 | 15 |
| 2018 | 16 |
| 2019 | 10 |
| 2020 | 13 |
| 2021 | 13 |
| 2022 | 9 |
| 2023 | 15 |
| 2024 | 14 |
| 2025 | 10 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing composite material and composite material
US-2019248967-A1 · Aug 15, 2019 · US
Method for producing polyaspartic acid under reflux cooling
US-10370620-B2 · Aug 6, 2019 · US
Iodinated polymers for biological agent defeat
US-10342232-B1 · Jul 9, 2019 · US
Method of producing nylon
US-10329590-B2 · Jun 25, 2019 · US
Polymerization Coupled Compounding Process
US-2019177495-A1 · Jun 13, 2019 · US
Functionalization of trans-3-hexenedioic acid for the production of hydrophobic polyamides and chemical resistance thereof
US-2019153156-A1 · May 23, 2019 · US
Poly(anhydride)-based polymer electrolytes for high voltage lithium ion batteries
US-2019131653-A1 · May 2, 2019 · US
Methods for producing polyaspartic acids in the presence of methanesulfonic acid
US-10233286-B2 · Mar 19, 2019 · US
Copolymer, production method thereof, and resin composition
US-2019002691-A1 · Jan 3, 2019 · US
Method for increasing the difference between the melting temperature and the crystallization temperature of a polyamide powder
US-2018361681-A1 · Dec 20, 2018 · US
Improved polymer preparation
US-2018362713-A1 · Dec 20, 2018 · US
High Molecular Weight Polyamides and CoPolyamides with Uniform RV and Low Gel Content
US-2018340042-A1 · Nov 29, 2018 · US
Fine powder of polyamide from renewable materials and method for making such a powder
US-10118997-B2 · Nov 6, 2018 · US
Process for preparing a diamine/dicarboxylic acid salt
US-2018297933-A1 · Oct 18, 2018 · US
Method of preparing well-defined polypeptides via ROP
US-10100149-B2 · Oct 16, 2018 · US
Composition made of amino acid or ester with polymer quality and methods for obtaining same
US-2018282259-A1 · Oct 4, 2018 · US
Conjugate of polysarcosine and nir contrast agent for photoacoustic imaging
US-2018280547-A1 · Oct 4, 2018 · US
Polymerization coupled compounding process
US-10081712-B2 · Sep 25, 2018 · US
Polymerization coupled compounding process
US-10077341-B2 · Sep 18, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08G69/04?
- CPC C08G69/04 is the Cooperative Patent Classification code for “Preparatory processes.”
- How many patents are filed under CPC C08G69/04 (Preparatory processes)?
- Our database includes 136 publications tagged with this CPC code.
- Is patent activity under CPC C08G69/04 growing?
- Publication counts under this code: 14 in 2024 vs 10 in 2025 (latest complete years).