John W. Campbell
9Patents
4h-index
11Co-inventors
54Inventor score
Filing activity: Jan 22, 1993 → Apr 12, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7989181B2 | Methods and compositions for producing recombinant proteins using a gene for TRNA | Chemistry; Metallurgy | 56 | Active |
| US8178339B2 | Reduced genome E. coli | Chemistry; Metallurgy | 19 | Active |
| US8119365B2 | Insertion sequence-free bacteria | Chemistry; Metallurgy | 17 | Active |
| US5445952A | Method to produce biotin | Chemistry; Metallurgy | 6 | Expired |
| US9085765B2 | Reduced genome E. coli | Chemistry; Metallurgy | 4 | Active |
| US6579707B2 | Stabilization of enzymes during freezing | Chemistry; Metallurgy | 3 | Expired |
| US7935505B2 | Plasmid DNA preparations and methods for producing same | Human Necessities | 2 | Active |
| US8765408B2 | Prophage element-free bacteria | Chemistry; Metallurgy | 0 | Active |
| US8900849B2 | Oxygen-regulated microorganisms | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.