Bulk acoustic resonator and filter including the same
US-2020366265-A1 · Nov 19, 2020 · US
including active elements
including active elements · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03H9/545 |
| Official title | {including active elements} |
| Display label | including active elements |
| Total patents | 114 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 9 |
| 2017 | 9 |
| 2018 | 8 |
| 2019 | 19 |
| 2020 | 18 |
| 2021 | 11 |
| 2022 | 14 |
| 2023 | 8 |
| 2024 | 8 |
| 2025 | 6 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Filter and method of designing an RF filter
US-10840885-B2 · Nov 17, 2020 · US
Filter module
US-2020304100-A1 · Sep 24, 2020 · US
Method for producing a batch of acoustic wave filters
US-10727802-B2 · Jul 28, 2020 · US
Rf front end module including hybrid filter and active circuits in a single package
US-2020235716-A1 · Jul 23, 2020 · US
Film bulk acoustic resonator (FBAR) devices with 2DEG bottom electrode
US-10673405-B2 · Jun 2, 2020 · US
Acoustic impedance transformation circuit and related apparatus
US-10666225-B2 · May 26, 2020 · US
Techniques for monolithic co-integration of polycrystalline thin-film bulk acoustic resonator devices and monocrystalline iii-n semiconductor transistor devices
US-2020119087-A1 · Apr 16, 2020 · US
Acoustic resonator structure
US-2020099362-A1 · Mar 26, 2020 · US
Acoustic impedance transformation circuit and related apparatus
US-2020099364-A1 · Mar 26, 2020 · US
Acoustic structure having tunable parallel resonance frequency
US-2020099363-A1 · Mar 26, 2020 · US
Epitaxial AIN/cREO structure for RF filter applications
US-10573686-B2 · Feb 25, 2020 · US
Wideband Filter Structure and Apparatus, Radio Transceiver, Mobile Terminal, Method for Filtering a Radio Signal
US-2020021274-A1 · Jan 16, 2020 · US
Radio-frequency filter, radio-frequency front-end circuit, and communication apparatus
US-2019341909-A1 · Nov 7, 2019 · US
GaN stack acoustic reflector and method for producing the same
US-10468454-B1 · Nov 5, 2019 · US
Gan stack acoustic reflector and method for producing the same
US-2019333965-A1 · Oct 31, 2019 · US
Elastic wave device
US-10447233-B2 · Oct 15, 2019 · US
EPITAXIAL AIN/cREO STRUCTURE FOR RF FILTER APPLICATIONS
US-2019305039-A1 · Oct 3, 2019 · US
Fan-out electronic component package
US-10431550-B2 · Oct 1, 2019 · US
Integrated acoustic filter on complementary metal oxide semiconductor (cmos) die
US-2019273116-A1 · Sep 5, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03H9/545?
- CPC H03H9/545 is the Cooperative Patent Classification code for “including active elements.”
- How many patents are filed under CPC H03H9/545 (including active elements)?
- Our database includes 114 publications tagged with this CPC code.
- Is patent activity under CPC H03H9/545 growing?
- Publication counts under this code: 8 in 2024 vs 6 in 2025 (latest complete years).