List of issued US patents as of 6/3/2022


XBAR
11,349,452

Transversely-excited film bulk acoustic filters with symmetric layout
11,349,450

Symmetric transversely-excited film bulk acoustic resonators with reduced spurious modes
11,329,628

Filter using lithium niobate and lithium tantalate transversely-excited film bulk acoustic resonators
11,329,625

Film bulk acoustic sensors using thin LN-LT layer
11,323,096

Transversely-excited film bulk acoustic resonator with periodic etched holes
11,323,095

Rotation in XY plane to suppress spurious modes in XBAR devices
11,323,091

Transversely-excited film bulk acoustic resonator with diaphragm support pedestals
11,323,090

Transversely-excited film bulk acoustic resonator using YX-cut lithium niobate for high power applications
11,323,089

Filter using piezoelectric film bonded to high resistivity silicon substrate with trap-rich layer
11,309,865

Acoustic matrix diplexers and radios using acoustic matrix diplexers
11,283,424

Transversely-excited film bulk acoustic resonator with etched conductor patterns
11,271,540 Transversely-excited film bulk acoustic resonator with tether-supported diaphragm
11,271,539 Transversely-excited film bulk acoustic resonator with tether-supported diaphragm
11,264,969 Transversely-excited film bulk acoustic resonator comprising small cells
11,264,966 Solidly-mounted transversely-excited film bulk acoustic resonator with diamond layers in Bragg reflector stack
11,251,775 Film Bulk Acoustic resonators in thin LN-LT layers 
11,239,822 Transversely-excited film bulk acoustic resonator using YX-cut Lithium Niobate for high power applications
11,239,816 Decoupled transversely-excited film bulk acoustic resonators
11,228,296 Transversely-excited bulk acoustic resonator with cavity having a curved perimeter
11,206,009 Transversely-excited film bulk acoustic resonator with interdigital transducer with varied mark and pitch
11,165,407 Solidly-mounted transversely-excited film bulk acoustic resonator
11,146,244 Solidly mounted transversely-excited film bulk acoustic resonator using rotated Y-cut Lithium Niobate
11,146,238 XBAR fabrication with trimming based on optical measurements
11,146,232 Analysis of XBAR resonance and higher order spurious modes
11,146,231 Solidly mounted transversely-excited film bulk acoustic resonator with recessed IDT fingers
11,143,561 Passive microphone/pressure sensor using a piezoelectric diaphragm
11,139,794 Transversely-excited film bulk acoustic resonator
11,114,998 Transversely-excited film bulk acoustic resonators with molybdenum conductors
11,114,996 Transversely-excited film bulk acoustic resonator with IDT Bus bars on diagram
10,992,284 XBAR devices with multiple frequency setting layers
10,985,726 Solidly mounted transversely-excited film bulk acoustic resonator with recessed IDT fingers
10,985,730 Transversely-excited film bulk acoustic resonators for high power applications
10,992,283 High power solidly mounted transversely-excited film bulk acoustic resonator using rotated z-cut lithium niobate
10,985,728 XBAR filters using resonators with small pitches to achieve frequency separation
10,992,282 Transversely-excited film bulk acoustic resonators with two layer electrodes having varying cross-sectional widths
10,998,882 XBAR resonators with non-rectangular diaphragms
10,998,877 XBAR fabrication with trimming based on radio frequency measurements
10,944,380 Film bulk acoustic resonator in thin LN-LT layers
10,917,072 Split ladder acoustic wave filters
10,917,070 Bandpass filter with frequency separation between shunt and series resonators set by dielectric layer thickness
10,868,513 Transversely-excited film bulk acoustic filters with symmetric layout
10,868,512 High power transversely-excited film bulk acoustic resonators on Z-cut lithium niobate
10,868,510 Transversely-excited film bulk acoustic resonator with half-lambda dielectric layer
10,862,454 Film bulk acoustic resonators in thin LN-LT layers
10,826,462 Transversely-excited film bulk acoustic resonators with molybdenum conductors
10,819,309 Transversely-excited film bulk acoustic resonator package and method
10,797,675 Transversely excited film bulk acoustic resonator using rotated Z-cut lithium niobate
10,790,802 Transversely excited film bulk acoustic resonator using rotated Y-X cut lithium niobate
10,756,697 Transversely-excited film bulk acoustic resonator
10,637,438 Acoustic Wave Band N79 Filter
10,601,392 Solidly-mounted transversely-excited film bulk acoustic resonator
10,491,192 Transversely-excited film bulk acoustic resonator
10,911,021 Transversely-excited film bulk acoustic resonator with lateral etch stop
10,911,023 Transversely-excited film bulk acoustic resonator with etch-stop layer
10,911,017 Solidly mounted transversely excited film bulk acoustic resonator using rotated z-cut lithium niobate
FILTER/CIRCUIT DESIGN
11,296,677

Fast, highly accurate, full-FEM surface acoustic wave simulation
11,182,522 Hierarchical cascading in FEM simulations of SAW devices
11,036,910 Element removal design in microwave filters
11,038,489 Acoustic wave band-pass filter with low loss LC notch matching network
10,852,331 Spectral analysis of electronic circuits
10,755,021 Element removal design in microwave filters
10,657,305 Technique for Designing Acoustic Microwave Filters Using LCR-Based Resonator Models
10,437,952 Technique for Designing Acoustic Microwave Filters Using LCR-Based Resonantor Models
10,366,194 Element Removal Design in Microwave Filters
10,366,192 Network Synthesis Design of Microwave Acoustic Wave Filters
10,339,247 Simulating Effects of Temperature on Acoustic Microwave Filters
10,277,199 Method of Optimizing Input Impedance of Surface Acoustic Wave Filter
10,230,350 Extracted Poles for Acoustic Filters
10,140,406 Network Synthesis Design of Microwave Acoustic Wave Filters
10,116,283 Dual passband radio frequency filter and communications device
10,110,200 design and fabrication of acoustic wave filters having plate modes
10,044,399 Communication receiver using multiple-passband filter
10,038,424 Radio frequency filter, high selectivity triplexer, and communications device
10,027,310 Low-loss tunable radio frequency filter
9,985,329 Mixed resonator monolithic band-pass filter with enhanced rejection
9,959,378 Technique for designing acoustic microwave filters using LCR-based resonator models
9,948,277 Method of optimizing input impedance of SAW filter
9,934,345 Network synthesis design of microwave acoustic wave filters
9,929,769 Communication receiver using multiple-passband filter
9,754,060 Network synthesis design of microwave acoustic wave filters
9,654,078 Technique for designing acoustic microwave filters using LCR-based resonator models
9,607,119 Simulating effects of temperature on acoustic wave filters
9,525,393 Technique for designing acoustic microwave filters using LCR-based resonator models
9,524,360 Network synthesis design of microwave acoustic wave filters
9,405,875 Simulating effects on temperature on acoustic microwave filters
9,374,061 Method of optimizing input impedance of SAW filter
9,369,111 Design and fabrication of acoustic wave filters having plate modes
9,208,274 Network synthesis design of microwave acoustic wave filters
9,165,101 Network synthesis design of microwave acoustic wave filters
9,129,080 Low loss tunable filter radio frequency filter
9,038,005 Network synthesis design of microwave acoustic wave filters
8,990,742 Network synthesis design of microwave acoustic wave filters
8,751,993 Element removal design in microwave filters
8,701,065 Design of microwave acoustic wave filters
7,071,797 Method and apparatus for minimizing intermodulation with an asymmetric resonator
FILTER/CIRCUIT STRUCTURES
11,329,626

Bandpass filter with improved upper band edge sharpness
11,323,094 Resonator circuit using an inverter to adjust anti-resonance frequency
11,271,541 Microwave duplexer using coupled inductors to improve isolation
11,108,379
 High isolation surface acoustic wave duplexer
11,003,971 Ultra-wide-band SAW sensor with hyperbolically frequency modulated etched reflector
10,840,876 Temperature compensated acoustic wave devices
10,840,875 Surface acoustic wave devices using beryllium conductors
10,454,516 Communications receiver using multi-band
10,305,447 Acoustic wave filter with enhanced rejection
10,243,539 Radio frequency transmit filter with integrated impedance matching network
9,825,611 Multi-passband filters for mobile device RF front-ends
9,787,283 Low loss tunable filter radio frequency filter
9,647,628 Low loss tunable filter radio frequency filter
9,647,627 Low loss tunable filter radio frequency filter
9,608,595 Acoustic wave filter with enhanced rejection
9,391,351 Mixed resonator monolithic band-pass filter with enhanced rejection
9,331,669 High rejection surface acoustic wave duplexer
9,325,294 Improved design of microwave acoustic filters
9,135,388 Low-loss tunable radio frequency filter
9,077,312 High rejection surface acoustic wave filter
8,922,294 Low loss tunable filter radio frequency filter
8,862,192 Mixed resonator monolithic band-pass filter with enhanced rejection
8,797,120 Low loss tunable filter radio frequency filter
8,063,714 Low loss tunable filter radio frequency filter
7,924,114 Electrical filters with enhanced power handling
7,863,999 Low loss tunable filter radio frequency filter
7,719,382 Low-loss tunable radio frequency filter
7,639,101 Low loss tunable filter radio frequency filter
6,700,459 Dual-mode bandpass filter with direct capacitive couplings and far-field suppression structures