American Science and Engineering, Inc.
152Patents
71Active
152Granted
53Portfolio score
Filing activity: Mar 14, 1975 → Nov 21, 2022 · 21 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5764683A | Mobile X-ray inspection system for large objects | Physics | 267 | Expired |
| US5022062A | Automatic threat detection based on illumination by penetrating radiant energy using histogram processing | Physics | 257 | Expired |
| US6151381A | Gated transmission and scatter detection for x-ray imaging | Physics | 247 | Expired |
| US6459761B1 | Spectrally shaped x-ray inspection system | Physics | 238 | Expired |
| US6292533A | Mobile X-ray inspection system for large objects | Physics | 238 | Expired |
| US5313511A | X-ray imaging particularly adapted for low Z materials | Physics | 236 | Expired |
| US6249567A | X-ray back scatter imaging system for undercarriage inspection | Physics | 225 | Expired |
| US5910973A | Rapid X-ray inspection system | Physics | 223 | Expired |
| US5642394A | Sidescatter X-ray detection system | Physics | 221 | Expired |
| US5179581A | Automatic threat detection based on illumination by penetrating radiant energy | Physics | 218 | Expired |
| US6459764B1 | Drive-through vehicle inspection system | Physics | 216 | Expired |
| US6546072B1 | Transmission enhanced scatter imaging | Physics | 215 | Expired |
| US6192104A | Fan and pencil beams from a common source for x-ray inspection | Physics | 211 | Expired |
| US6442233B1 | Coherent x-ray scatter inspection system with sidescatter and energy-resolved detection | Physics | 211 | Expired |
| US6081580A | Tomographic inspection system | Physics | 207 | Expired |
| US5930326A | Side scatter tomography system | Physics | 202 | Expired |
| US5940468A | Coded aperture X-ray imaging system | Physics | 202 | Expired |
| US4825454A | Tomographic imaging with concentric conical collimator | Physics | 196 | Expired |
| US5224144A | Reduced mass flying spot scanner having arcuate scanning lines | Physics | 190 | Expired |
| US6252929A | Mobile x-ray inspection system for large objects | Physics | 188 | Expired |
| US5903623A | Mobile X-ray inspection system for large objects | Physics | 187 | Expired |
| US6542574B2 | System for inspecting the contents of a container | Electricity | 180 | Expired |
| US5253283A | Inspection method and apparatus with single color pixel imaging | Physics | 178 | Expired |
| US6282260A | Unilateral hand-held x-ray inspection apparatus | Physics | 177 | Expired |
| US6424695B1 | Separate lateral processing of backscatter signals | Physics | 170 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.