Charm Sciences, Inc.
71Patents
41Active
71Granted
49Portfolio score
Filing activity: Jul 19, 1990 → Nov 13, 2020 · 14 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5985675A | Test device for detection of an analyte | Emerging Cross-Sectional Technologies | 107 | Expired |
| US5965453A | Test apparatus, system and method for the detection of test samples | Emerging Cross-Sectional Technologies | 92 | Expired |
| US5827675A | Test apparatus, system and method for the detection of test samples | Physics | 79 | Expired |
| US7097983B2 | Method for detecting the presence of an analyte in a sample | Emerging Cross-Sectional Technologies | 71 | Expired |
| US6180395A | Reagent chamber for test apparatus and test apparatus | Emerging Cross-Sectional Technologies | 61 | Expired |
| US6475805B1 | Method for detection of an analyte | Emerging Cross-Sectional Technologies | 55 | Expired |
| US6319466A | Test device for detecting the presence of a residue analyte in a sample | Emerging Cross-Sectional Technologies | 50 | Expired |
| US5917592A | Photometer, and test sample holder for use therein, method and system | Physics | 34 | Expired |
| USD419439S | Blister package for analyte test strip | General | 33 | Expired |
| US5374534A | Method of preparing D-luciferin derivatives | Physics | 32 | Expired |
| US5489532A | Automatic test apparatus for antimicrobial drugs | Emerging Cross-Sectional Technologies | 30 | Expired |
| US6055050A | Photometer and test sample holder for use therein, method and system | Physics | 27 | Expired |
| US7785899B2 | Lateral flow test kit and method for detecting an analyte | Emerging Cross-Sectional Technologies | 25 | Active |
| US5539673A | Non-invasive infrared temperature sensor, system and method | Electricity | 21 | Expired |
| US5389335A | High temperature, short time microwave heating system and method of heating heat-sensitive material | Electricity | 20 | Expired |
| USD388519S | Pocket-size sanitation test kit | General | 16 | Expired |
| US5605812A | Test kit and method for the quantitative determination of coliform bacteria and E. coli | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5283180A | Bioluminescence method for the determination of pesticides | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5728542A | Disposable test kit apparatus and method for bacteria | Physics | 14 | Expired |
| US9488657B2 | Detection sensor systems and methods | Physics | 13 | Active |
| US7993871B2 | Sampling method and device | Emerging Cross-Sectional Technologies | 13 | Active |
| US7410808B1 | Method and assay for detection of residues | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5354663A | Microbial inhibition test kit and method | Emerging Cross-Sectional Technologies | 12 | Expired |
| USD694425S1 | Recognition test strip | General | 12 | Active |
| USD393601S | Photometer for use with a test sample holder | General | 11 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.