Bo Pi
115Patents
19h-index
31Co-inventors
86Inventor score
Filing activity: Jun 2, 1995 → Dec 8, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5677539A | Semiconductor radiation detector with enhanced charge collection | Physics | 109 | Expired |
| US6194726A | Semiconductor radiation detector with downconversion element | Human Necessities | 85 | Expired |
| US6490391B1 | Devices based on fibers engaged to substrates with grooves | Physics | 54 | Expired |
| US6571035B1 | Fiber optical switches based on optical evanescent coupling between two fibers | Physics | 51 | Expired |
| US6542663B1 | Coupling control in side-polished fiber devices | Physics | 50 | Expired |
| US6501875B2 | Mach-Zehnder inteferometers and applications based on evanescent coupling through side-polished fiber coupling ports | Physics | 48 | Expired |
| US6549713B1 | Stabilized and integrated fiber devices | Physics | 47 | Expired |
| US6556746B1 | Integrated fiber devices based on Mach-Zehnder interferometers and evanescent optical coupling | Physics | 45 | Expired |
| US6516114B2 | Integration of fibers on substrates fabricated with grooves | Physics | 44 | Expired |
| US6621951B1 | Thin film structures in devices with a fiber on a substrate | Physics | 42 | Expired |
| US6690857B2 | Fiber devices having side evanescent coupling port | Physics | 34 | Expired |
| US6621952B1 | In-fiber variable optical attenuators and modulators using index-changing liquid media | Physics | 31 | Expired |
| US10216975B1 | Optical imaging via imaging lens and imaging pinhole in under-screen optical sensor module for on-screen fingerprint sensing in devices having organic light emitting diode (OLED) screens or other screens | Electricity | 30 | Active |
| US10410037B2 | Under-screen optical sensor module for on-screen fingerprint sensing implementing imaging lens, extra illumination or optical collimator array | Physics | 24 | Active |
| US10331939B2 | Multi-layer optical designs of under-screen optical sensor module having spaced optical collimator array and optical sensor array for on-screen fingerprint sensing | Electricity | 23 | Active |
| US6625349B2 | Evanescent optical coupling between a waveguide formed on a substrate and a side-polished fiber | Physics | 22 | Expired |
| US7085452B1 | Optical devices having WGM cavity coupled to side-polished port | Physics | 22 | Expired |
| US10410036B2 | Under-screen optical sensor module for on-screen fingerprint sensing | Physics | 20 | Active |
| US9886613B2 | Integration of touch screen and fingerprint sensor assembly | Physics | 20 | Active |
| US9811713B2 | Secure human fingerprint sensor | Electricity | 19 | Active |
| US10437974B2 | Optical sensing performance of under-screen optical sensor module for on-screen fingerprint sensing | Physics | 18 | Active |
| US10438046B2 | Multifunction fingerprint sensor having optical sensing against fingerprint spoofing | Physics | 16 | Active |
| US10410033B2 | Under-LCD screen optical sensor module for on-screen fingerprint sensing | Electricity | 15 | Active |
| US5696458A | Front end data readout chip | Physics | 15 | Expired |
| US10303921B1 | On-LCD screen optical fingerprint sensing based on optical imaging with lens-pinhole module and other optical designs | Physics | 14 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.