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of closed-hollow-body type

of closed-hollow-body type · Cooperative Patent Classification (CPC)

Engines, pumps, lighting, heating, and mechanical systems.

Related technology areas

Mapped technology topics for this CPC code.

Mechanical Engineering

CPC classification statistics
Metric	Value
CPC code	F16T1/22
Official title	of closed-hollow-body type
Display label	of closed-hollow-body type
Total patents	20

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is rapidly growing.

Patents filed per year
Year	Patents
2015	1
2017	3
2018	2
2019	3
2020	1
2021	2
2022	3
2023	2
2024	3

Representative patents

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.

Condensate trap apparatus and buoyant body therefor
US-12169045-B2 · Dec 17, 2024 · US
Valve device
US-11953110-B2 · Apr 9, 2024 · US
Condensate trap
US-11892196-B2 · Feb 6, 2024 · US
Valve device
US-2023332708-A1 · Oct 19, 2023 · US
Discharge valve unit and fluid device
US-11578814-B2 · Feb 14, 2023 · US
Condensate trap apparatus and buoyant body therefor
US-2022316654-A1 · Oct 6, 2022 · US
Discharge valve unit and fluid device
US-2022146013-A1 · May 12, 2022 · US
Oil boiler
US-11255574-B2 · Feb 22, 2022 · US
Condensate trap
US-2021318029-A1 · Oct 14, 2021 · US
Valve device
US-11015718-B2 · May 25, 2021 · US
Oil boiler
US-2020348047-A1 · Nov 5, 2020 · US
Float drain
US-10451307-B2 · Oct 22, 2019 · US
Valve device
US-2019316686-A1 · Oct 17, 2019 · US
Automatic drain discharge apparatus
US-10203048-B2 · Feb 12, 2019 · US
Automatic drain
US-9970594-B2 · May 15, 2018 · US
Automatic drain discharge apparatus
US-2018045326-A1 · Feb 15, 2018 · US
Float drain
US-2017299078-A1 · Oct 19, 2017 · US
Float type drain trap
US-9791104-B2 · Oct 17, 2017 · US
Automatic drain
US-2017016573-A1 · Jan 19, 2017 · US
Float Type Drain Trap
US-2015192248-A1 · Jul 9, 2015 · US