Polyolefin photovoltaic backsheet comprising a stabilized polypropylene layer
US-11898023-B2 · Feb 13, 2024 · US
Piperidines
Piperidines · 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 | C08K5/3435 |
| Official title | Piperidines |
| Display label | Piperidines |
| Total patents | 644 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 50 |
| 2016 | 53 |
| 2017 | 69 |
| 2018 | 59 |
| 2019 | 69 |
| 2020 | 72 |
| 2021 | 59 |
| 2022 | 66 |
| 2023 | 36 |
| 2024 | 60 |
| 2025 | 42 |
| 2026 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Polyarylene polymers
US-2016289493-A1 · Oct 6, 2016 · US
5H-furan-2-one derivatives for stabilization of organic material
US-9458380-B2 · Oct 4, 2016 · US
Flame retardant led for indoor lighting
US-2016272779-A1 · Sep 22, 2016 · US
Polyolefin compositions for building materials
US-2016244591-A1 · Aug 25, 2016 · US
Curable compositions containing isocyanate functional components having improved durability
US-9403933-B2 · Aug 2, 2016 · US
Process for producing high molecular weight polyethylene
US-2016184476-A1 · Jun 30, 2016 · US
Polypropylene with low fluid retention
US-9365710-B2 · Jun 14, 2016 · US
Uhmwpe fiber
US-2016108556-A1 · Apr 21, 2016 · US
Process for producing high molecular weight polyethylene
US-9238719-B2 · Jan 19, 2016 · US
Polyamide resin composition with excellent color tone
US-9221950-B2 · Dec 29, 2015 · US
Pressure-sensitive adhesive composition
US-2015368520-A1 · Dec 24, 2015 · US
Photoresist overcoat compositions and methods of forming electronic devices
US-9212293-B2 · Dec 15, 2015 · US
Resin composition
US-2015353710-A1 · Dec 10, 2015 · US
Liquid-applied waterproofing membrane for roofs
US-2015353797-A1 · Dec 10, 2015 · US
Polarizer protective film, polarizer, and liquid crystal display device
US-9201173-B2 · Dec 1, 2015 · US
Automotive compounds with improved odor
US-2015322251-A1 · Nov 12, 2015 · US
Process for producing polyurethane resin
US-2015315327-A1 · Nov 5, 2015 · US
Stabilizing compositions for stabilizing materials against ultraviolet light and thermal degradation
US-2015315465-A1 · Nov 5, 2015 · US
Method for preparing a thermoplastic polyurethane of improved yellowness index, and optical articles made therefrom
US-9169373-B2 · Oct 27, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08K5/3435?
- CPC C08K5/3435 is the Cooperative Patent Classification code for “Piperidines.”
- How many patents are filed under CPC C08K5/3435 (Piperidines)?
- Our database includes 644 publications tagged with this CPC code.
- Is patent activity under CPC C08K5/3435 growing?
- Publication counts under this code: 60 in 2024 vs 42 in 2025 (latest complete years).