Donald Johnson
11Patents
8h-index
12Co-inventors
69Inventor score
Filing activity: Sep 24, 1979 → Mar 13, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6564730B2 | Seed planter apparatus and method | Emerging Cross-Sectional Technologies | 65 | Expired |
| US5842428A | Vacuum seed metering apparatus having housing openings | Human Necessities | 61 | Expired |
| US6109193A | Seed planter apparatus and method | Emerging Cross-Sectional Technologies | 58 | Expired |
| US6401638B1 | Seed planter apparatus and method | Emerging Cross-Sectional Technologies | 35 | Expired |
| US6776108B2 | Seed planter apparatus and method | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6121936A | Conformable, integrated antenna structure providing multiple radiating apertures | Electricity | 14 | Expired |
| US6739272B2 | Seed planter apparatus and method | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6325005A | Seed planter apparatus and method | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6742465B2 | Seed planter apparatus and method | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6374759B1 | Seed planter apparatus and method | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4268292A | Method and apparatus for forming glass filaments | Textiles; Paper | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.