Organosilyl polysulfides, and rubber mixtures containing same
US-2024239990-A1 · Jul 18, 2024 · US
Guanidine; Derivatives thereof
Guanidine; 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 | C08K5/31 |
| Official title | Guanidine; Derivatives thereof |
| Display label | Guanidine; Derivatives thereof |
| Total patents | 354 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 28 |
| 2016 | 27 |
| 2017 | 34 |
| 2018 | 42 |
| 2019 | 49 |
| 2020 | 34 |
| 2021 | 38 |
| 2022 | 31 |
| 2023 | 22 |
| 2024 | 27 |
| 2025 | 17 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Functionalized Elastomeric Polymer Compositions, Their Preparation Methods and Crosslinked Rubber Compositions Thereof
US-2017369606-A1 · Dec 28, 2017 · US
Rubber Composition, Laminated Body of Rubber Composition and Metal, and Vulcanized Rubber Product
US-2017275441-A1 · Sep 28, 2017 · US
Method for manufacturing rubber composition
US-9688825-B2 · Jun 27, 2017 · US
Golf club grip and golf club
US-9586113-B2 · Mar 7, 2017 · US
Rubber composition for tire treads and pneumatic tire using same
US-9499009-B2 · Nov 22, 2016 · US
Curable composition and cured product thereof
US-2016326344-A1 · Nov 10, 2016 · US
Curable organosiloxane oligomer compositions
US-2016319081-A1 · Nov 3, 2016 · US
Rubber composition comprising a polyphenylene ether resin as plasticizer
US-2016319115-A1 · Nov 3, 2016 · US
Bromine-free fire retardant (fr) agents capable of using a cyclization mechanism
US-2016312121-A1 · Oct 27, 2016 · US
Alkoxysilyl-containing adhesive sealants with intrinsically reduced viscosity
US-2016304666-A1 · Oct 20, 2016 · US
Method of manufacturing terminal-modified polymer
US-9458265-B2 · Oct 4, 2016 · US
Method of manufacturing terminal-modified polymer
US-9458274-B2 · Oct 4, 2016 · US
Rubber Composition, Laminated Body of Rubber Composition and Metal, And Vulcanized Rubber Product
US-2016280894-A1 · Sep 29, 2016 · US
Additives for improving natural oil based polyurethane foam performance
US-9447223-B2 · Sep 20, 2016 · US
Method for producing rubber composition
US-9447255-B2 · Sep 20, 2016 · US
Vinylsilanes for Use in Functionalized Elastomeric Polymers
US-2016264601-A1 · Sep 15, 2016 · US
Elastomeric compositions comprising vinyl acetal polymers
US-2016237256-A1 · Aug 18, 2016 · US
Process for making elastomeric compositions comprising vinyl acetal polymers
US-2016237220-A1 · Aug 18, 2016 · US
Functionalized oligomers
US-2016208066-A1 · Jul 21, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08K5/31?
- CPC C08K5/31 is the Cooperative Patent Classification code for “Guanidine; Derivatives thereof.”
- How many patents are filed under CPC C08K5/31 (Guanidine; Derivatives thereof)?
- Our database includes 354 publications tagged with this CPC code.
- Is patent activity under CPC C08K5/31 growing?
- Publication counts under this code: 27 in 2024 vs 17 in 2025 (latest complete years).