John B. Perkins
11Patents
3h-index
14Co-inventors
53Inventor score
Filing activity: Feb 6, 1995 → Mar 2, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6841366B1 | Biotin biosynthesis in bacillus subtilis | Chemistry; Metallurgy | 21 | Expired |
| US5837528A | Bacterial strains which overproduce riboflavin | Chemistry; Metallurgy | 9 | Expired |
| US5925538A | Bacterial strains which overproduce riboflavin | Chemistry; Metallurgy | 6 | Expired |
| US6057136A | Biotin biosynthesis in Bacillus subtilis | Chemistry; Metallurgy | 3 | Expired |
| US6303377A | Biotin biosynthesis in bacillus subtilis | Chemistry; Metallurgy | 1 | Expired |
| US8841088B2 | Method for mRNA stabilization | Chemistry; Metallurgy | 0 | Active |
| US7091000B2 | Bacterial strains which overproduce riboflavin and methods of use thereof | Chemistry; Metallurgy | 0 | Expired |
| US8329395B2 | Thiamin production by fermentation | Chemistry; Metallurgy | 0 | Active |
| US7435571B2 | Microbial production of COQ10 | Chemistry; Metallurgy | 0 | Expired |
| US6551813B1 | Nutrient medium for bacterial strains which overproduce riboflavin | Chemistry; Metallurgy | 0 | Expired |
| US6737256B2 | Overcoming DAPA aminotransferase bottlenecks in biotin vitamers biosynthesis | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.