Corrugated heat protection tube and methods of making the same
US-10876662-B2 · Dec 29, 2020 · US
against fire or other external sources of extreme heat
against fire or other external sources of extreme heat · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F16L57/04 |
| Official title | against fire or other external sources of extreme heat |
| Display label | against fire or other external sources of extreme heat |
| Total patents | 127 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 12 |
| 2017 | 8 |
| 2018 | 13 |
| 2019 | 11 |
| 2020 | 18 |
| 2021 | 12 |
| 2022 | 10 |
| 2023 | 7 |
| 2024 | 13 |
| 2025 | 8 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System and method for sealing a fluid system in a safety condition
US-10767565-B2 · Sep 8, 2020 · US
Filament reinforced tapes useful as underwater pipe wrap
US-2020055649-A1 · Feb 20, 2020 · US
Dynamically vulcanized polyarylene sulfide composition
US-10501626-B2 · Dec 10, 2019 · US
Pipe holder
US-10486529-B2 · Nov 26, 2019 · US
Member for use in undersea applications
US-10457455-B2 · Oct 29, 2019 · US
Fire protection sleeve
US-10415725-B2 · Sep 17, 2019 · US
Corrugated heat protection tube and methods of making the same
US-2019242503-A1 · Aug 8, 2019 · US
Corrugated heat protection tube and methods of making the same
US-10316993-B2 · Jun 11, 2019 · US
Waste-gas line for a battery in an aircraft
US-2019162340-A1 · May 30, 2019 · US
Self sealing end fitting
US-10302232-B2 · May 28, 2019 · US
Fire zone hoses and methods for forming the same
US-2019154174-A1 · May 23, 2019 · US
Heat and fire resistant gel seal
US-2019038924-A1 · Feb 7, 2019 · US
Self-curling non-woven sleeve and method of construction thereof
US-10196194-B2 · Feb 5, 2019 · US
Pipe holder
US-2018334026-A1 · Nov 22, 2018 · US
Method for installing a firestop device or insulation having firestop properties as well as a firestop module
US-10112065-B2 · Oct 30, 2018 · US
Intumescent fire sleeve, coil of several intumescent fire sleeves and method for installation of an intumescent fire sleeve
US-2018306352-A1 · Oct 25, 2018 · US
Corrugated heat protection tube and methods of making the same
US-2018266591-A1 · Sep 20, 2018 · US
Bulkhead fitting assembly
US-9995418-B2 · Jun 12, 2018 · US
Bulkhead fitting assembly and method of sealing a bulkhead opening
US-9989176-B2 · Jun 5, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16L57/04?
- CPC F16L57/04 is the Cooperative Patent Classification code for “against fire or other external sources of extreme heat.”
- How many patents are filed under CPC F16L57/04 (against fire or other external sources of extreme heat)?
- Our database includes 127 publications tagged with this CPC code.
- Is patent activity under CPC F16L57/04 growing?
- Publication counts under this code: 13 in 2024 vs 8 in 2025 (latest complete years).