DJ

Douglas Jachowski

MC Murata Manufacturing Co.: 7 patents #1,107 of 5,295Top 25%
AT Allen Telecom: 6 patents #2 of 46Top 5%
UF US Air Force: 2 patents #3,473 of 16,312Top 25%
OR Orion: 2 patents #11 of 40Top 30%
RE Resonant: 1 patents #27 of 35Top 80%
Overall (All Time): #227,592 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12375062 Transversely-excited film bulk acoustic resonator filters with sub-resonators having different mark and pitch Greg Dyer 2025-07-29
12308824 Resonator circuit using an inverter to adjust anti-resonance frequency Gregory L. Hey-Shipton 2025-05-20
12255625 Filter using transversely-excited film bulk acoustic resonators with inductively coupled sub-resonators Ventsislav Yantchev, Bryant Garcia, Patrick Turner 2025-03-18
12206389 Bandpass filter with improved upper band edge sharpness 2025-01-21
12119805 Substrate processing and membrane release of transversely-excited film bulk acoustic resonator using a sacrificial tub Albert Cardona, Chris O'Brien 2024-10-15
12028049 Transversely-excited film bulk acoustic resonator filters with sub-resonators having different mark and pitch Greg Dyer 2024-07-02
12021496 Resonators with different membrane thicknesses on the same die Patrick Turner, Bryant Garcia 2024-06-25
11329626 Bandpass filter with improved upper band edge sharpness 2022-05-10
11323094 Resonator circuit using an inverter to adjust anti-resonance frequency Gregory L. Hey-Shipton 2022-05-03
8305164 Frequency-agile frequency-selective variable attenuator 2012-11-06
7323955 Narrow-band absorptive bandstop filter with multiple signal paths 2008-01-29
5798676 Dual-mode dielectric resonator bandstop filter 1998-08-25
5576674 Optimum, multiple signal path, multiple-mode filters and method for making same 1996-11-19
5495216 Apparatus for providing desired coupling in dual-mode dielectric resonator filters 1996-02-27
5446729 Compact, low-intermodulation multiplexer employing interdigital filters 1995-08-29
5428325 RF filters and multiplexers with resonator decouplers David P. Halley, Chia-Sam Wey 1995-06-27
5410284 Folded multiple bandpass filter with various couplings 1995-04-25
5191304 Bandstop filter having symmetrically altered or compensated quarter wavelength transmission line sections 1993-03-02
5065119 Narrow-band, bandstop filter 1991-11-12