Zellweger Analytics Limited
8Patents
0Active
8Granted
25Portfolio score
Filing activity: Oct 28, 1997 → May 11, 2001
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6918281B2 | Gas sensor calibration system | Physics | 25 | Expired |
| US6455854B1 | Infrared radiation detector for monitoring the presence of alkanes | Physics | 15 | Expired |
| US6251243A | Gas detecting apparatus having condition monitoring means | Physics | 14 | Expired |
| US6049283A | Gas detecting apparatus | Physics | 9 | Expired |
| US6123818A | Gas detecting apparatus having condition monitoring means | Physics | 5 | Expired |
| US6217827A | Hydride gas detecting tape | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6351982B1 | Housing for a flammable gas detector | Physics | 4 | Expired |
| US6117684A | Backpressure regulating flow cell that may be utilized with sensor | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.