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Stabilisation of output, e.g. using crystal

Stabilisation of output, e.g. using crystal · Cooperative Patent Classification (CPC)

Electric circuits, power, telecommunications, and semiconductors.

Related technology areas

Mapped technology topics for this CPC code.

Electricity

CPC classification statistics
Metric	Value
CPC code	H03K3/3545
Official title	{Stabilisation of output, e.g. using crystal}
Display label	Stabilisation of output, e.g. using crystal
Total patents	14

Filing trend

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

Filing activity over the last five years is declining.

Patents filed per year
Year	Patents
2015	2
2019	2
2020	2
2021	1
2022	3
2023	3
2025	1

Representative patents

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

Low power crystal oscillator with automatic amplitude control
US-12294372-B2 · May 6, 2025 · US
Oscillator and clock generation circuit
US-11855636-B2 · Dec 26, 2023 · US
Low power crystal oscillator with automatic amplitude control
US-2023412155-A1 · Dec 21, 2023 · US
Semiconductor device and oscillation circuit
US-11728770-B2 · Aug 15, 2023 · US
Oscillator and clock generation circuit
US-2022352876-A1 · Nov 3, 2022 · US
Radiation hardened by design CMOS crystal oscillator for readout telemetry
US-11476804-B1 · Oct 18, 2022 · US
Semiconductor device and oscillation circuit
US-2022329204-A1 · Oct 13, 2022 · US
Oscillator circuit arrangement
US-11070170-B2 · Jul 20, 2021 · US
Clock buffer and method thereof
US-10879899-B2 · Dec 29, 2020 · US
Oscillator circuit arrangement
US-2020373884-A1 · Nov 26, 2020 · US
Self-compensated oscillator circuit
US-2019334509-A1 · Oct 31, 2019 · US
Clock Buffer and Method Thereof
US-2019058473-A1 · Feb 21, 2019 · US
Apparatus and methods for multiphase oscillators
US-9209745-B2 · Dec 8, 2015 · US
Apparatus and methods for multiphase oscillators
US-2015180455-A1 · Jun 25, 2015 · US