Corrugated tubular member and method for producing corrugated tubular member
US-2025327537-A1 · Oct 23, 2025 · US
made of sound-absorbing materials or with sound-absorbing structure · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F16L11/26 |
| Official title | made of sound-absorbing materials or with sound-absorbing structure |
| Display label | made of sound-absorbing materials or with sound-absorbing structure |
| Total patents | 7 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2019 | 1 |
| 2020 | 2 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2025327537-A1 · Oct 23, 2025 · US
US-10808874-B2 · Oct 20, 2020 · US
US-2020240656-A1 · Jul 30, 2020 · US
US-2019162350-A1 · May 30, 2019 · US
US-9310013-B2 · Apr 12, 2016 · US
US-2016069487-A1 · Mar 10, 2016 · US
US-9057533-B2 · Jun 16, 2015 · US