John E. Spencer
2Patents
2h-index
5Co-inventors
27Inventor score
Filing activity: Dec 5, 1989 → May 30, 1990
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5071468A | Triazolopyrimidine herbicides | Human Necessities | 20 | Expired |
| US5139563A | Herbicidal compounds | Chemistry; Metallurgy | 12 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.