David A. Smith
55Patents
29h-index
57Co-inventors
91Inventor score
Filing activity: Nov 7, 1974 → Jan 17, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5475441A | Electronic camera with memory card interface to a computer | Electricity | 321 | Expired |
| US5493154A | Temperature share scheme | Emerging Cross-Sectional Technologies | 214 | Expired |
| US5001620A | Power factor improvement | Emerging Cross-Sectional Technologies | 148 | Expired |
| US6997914B2 | Implantable access port | Human Necessities | 141 | Expired |
| US5506617A | Electronic camera incorporating a computer-compatible bus interface | Electricity | 105 | Expired |
| US5341489A | Memory card with programmable interleaving | Physics | 85 | Expired |
| US5430633A | Multi-resonant clamped flyback converter | Emerging Cross-Sectional Technologies | 76 | Expired |
| US6243565A | Method and apparatus for transmitting communication signals using frequency and polarization diversity | Electricity | 74 | Expired |
| US6006075A | Method and apparatus for transmitting communication signals using transmission space diversity and frequency diversity | Electricity | 73 | Expired |
| US5175525A | Low profile transformer | Electricity | 70 | Expired |
| US5680142A | Communication system and method utilizing an antenna having adaptive characteristics | Electricity | 65 | Expired |
| US5410467A | Power converters with improved switching efficiency | Electricity | 64 | Expired |
| US4618767A | Low-energy scanning transmission electron microscope | Emerging Cross-Sectional Technologies | 58 | Expired |
| US5002349A | Integrated acousto-optic filters and switches | Physics | 55 | Expired |
| US6087922A | Folded foil transformer construction | Electricity | 54 | Expired |
| US6212242A | Method and apparatus for transmitting communication signals using transmission space diversity and frequency diversity | Electricity | 50 | Expired |
| US5642355A | Method of supporting extended range in a TDMA system | Electricity | 50 | Expired |
| US5438294A | Gate drive circuit | Electricity | 49 | Expired |
| US5177431A | Linear programming circuit for adjustable output voltage power converters | Physics | 48 | Expired |
| US6694073B2 | Reconfigurable free space wavelength cross connect | Electricity | 46 | Expired |
| US5206800A | Zero voltage switching power converter with secondary side regulation | Electricity | 41 | Expired |
| US5173846A | Zero voltage switching power converter | Electricity | 41 | Expired |
| US5694297A | Integrated circuit mounting structure including a switching power supply | Electricity | 41 | Expired |
| US6798941B2 | Variable transmission multi-channel optical switch | Electricity | 36 | Expired |
| USD340907S | Power converter module | General | 35 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.