David Spencer
7Patents
3h-index
12Co-inventors
50Inventor score
Filing activity: Apr 8, 1991 → Dec 22, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5757323A | Antenna arrangements | Electricity | 210 | Expired |
| US7632983B2 | Expression of monoclonal antibodies in duckweed | Chemistry; Metallurgy | 7 | Expired |
| US5172081A | Polarizer arrangement | Electricity | 3 | Expired |
| US5619248A | Video signal distribution system microwave radio link for transmitting double sideband phase modulated carrier signal | Electricity | 1 | Expired |
| US8017836B2 | Expression of plasminogen and microplasminogen in duckweed | Chemistry; Metallurgy | 0 | Active |
| US8137661B2 | Controlled release interferon drug products and treatment of HCV infections using same | Human Necessities | 0 | Active |
| US7659445B2 | Expression of plasminogen and microplasminogen in duck weed | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.