Inventor · Rancho Palos Verdes, CA, US

Robert B. Stokes

26Patents
10h-index
26Co-inventors
75Inventor score

Filing activity: May 12, 1983 → Jun 11, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
US5552655A Low frequency mechanical resonator Electricity 188 Expired
US5382930A Monolithic multipole filters made of thin film stacked crystal filters Electricity 97 Expired
US5446306A Thin film voltage-tuned semiconductor bulk acoustic resonator (SBAR) Electricity 65 Expired
US5283458A Temperature stable semiconductor bulk acoustic resonator Electricity 47 Expired
US6218911A Planar airbridge RF terminal MEMS switch Electricity 44 Expired
US6760454B1 Passive voice-activated microphone and transceiver system Electricity 36 Expired
US6291924A Adjustable saw device Electricity 25 Expired
US4499393A Surface acoustic wave spectrum analyzer Electricity 18 Expired
US6856499B2 MEMS variable inductor and capacitor Electricity 15 Expired
US4513261A Low-loss acoustic wave filter device Electricity 10 Expired
US4947073A Saw channelized filters Electricity 10 Expired
US10601391B2 Film bulk acoustic resonator with spurious resonance suppression Electricity 9 Active
US7687971B2 Electric field control of surface acoustic wave velocity Electricity 9 Active
US11736088B2 Film bulk acoustic resonator with spurious resonance suppression Electricity 6 Active
US6051987A Apparatus and method for detection of residual magnetic fields in dynamoelectric machines Physics 5 Expired
US4926146A Parallel-to-serial signal processor using surface acoustic waves Electricity 5 Expired
US4707631A Isotropic acoustic wave substrate Electricity 5 Expired
US4716390A Magnetostatic wave channelizer Electricity 5 Expired
US11909373B2 Bulk acoustic resonator structures with improved edge frames Electricity 4 Active
US5179309A Surface acoustic wave chirp filter Electricity 3 Expired
US7656253B2 Surface acoustic wave passband control Emerging Cross-Sectional Technologies 3 Active
US6873223B2 MEMS millimeter wave switches Electricity 2 Expired
US4672641A Surface acoustic wave device for data rate reduction Electricity 1 Expired
US12028050B1 Bulk acoustic wave filter with reduced second harmonics generation Electricity 1 Active
USRE45704E1 MEMS millimeter wave switches General 0 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.