Heat-recoverable article, wire splice, and wire harness
US-9524812-B2 · Dec 20, 2016 · US
natural or synthetic rubbers
natural or synthetic rubbers · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01B3/28 |
| Official title | natural or synthetic rubbers |
| Display label | natural or synthetic rubbers |
| Total patents | 282 |
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 | 21 |
| 2016 | 46 |
| 2017 | 33 |
| 2018 | 39 |
| 2019 | 32 |
| 2020 | 29 |
| 2021 | 23 |
| 2022 | 16 |
| 2023 | 17 |
| 2024 | 12 |
| 2025 | 9 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Materials and methods for insulation of conducting fibres, and insulated products
US-9520213-B2 · Dec 13, 2016 · US
Electrically insulating material and conductor wrap for electrical equipment, such as transformers
US-2016351291-A1 · Dec 1, 2016 · US
Electrical insulation material and transformer
US-2016343465-A1 · Nov 24, 2016 · US
Flame-retardant resin composition
US-9502156-B2 · Nov 22, 2016 · US
Electric wire and method for producing the same, and multi-core cable and method for producing the same
US-2016300641-A1 · Oct 13, 2016 · US
Dielectric material for transducer, method for manufacturing the same, and transducer including the same
US-2016300640-A1 · Oct 13, 2016 · US
Resin composition and coated electric wire
US-2016272801-A1 · Sep 22, 2016 · US
Wire protecting member
US-2016257267-A1 · Sep 8, 2016 · US
Insulated wire
US-2016247598-A1 · Aug 25, 2016 · US
Electrical device comprising a crosslinked layer
US-2016233005-A1 · Aug 11, 2016 · US
Electric cable
US-9412488-B2 · Aug 9, 2016 · US
Heat-resistant silane crosslinked resin molded body and method of producing the same, heat-resistant silane crosslinkable resin composition and method of producing the same, silane master batch, and heat-resistant product using heat-resistant silane crosslinked resin molded body
US-2016211050-A1 · Jul 21, 2016 · US
Method of making an electrical stress control device having a dielectric material with non-linear dielectric constant
US-9390833-B2 · Jul 12, 2016 · US
Fluorine-containing thermoplastic elastomer composition
US-2016194512-A1 · Jul 7, 2016 · US
Fluorinated elastomer composition and method for its production, molded product, cross-linked product, and covered electric wire
US-2016194491-A1 · Jul 7, 2016 · US
Heat-recoverable article, wire splice, and wire harness
US-2016190787-A1 · Jun 30, 2016 · US
Highly dielectric elastomer molded body and electronic component material for high frequency use
US-9376572-B2 · Jun 28, 2016 · US
Power cable polymer joint
US-2016172082-A1 · Jun 16, 2016 · US
Power cable polymer joint
US-2016172072-A1 · Jun 16, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01B3/28?
- CPC H01B3/28 is the Cooperative Patent Classification code for “natural or synthetic rubbers.”
- How many patents are filed under CPC H01B3/28 (natural or synthetic rubbers)?
- Our database includes 282 publications tagged with this CPC code.
- Is patent activity under CPC H01B3/28 growing?
- Publication counts under this code: 12 in 2024 vs 9 in 2025 (latest complete years).