Melvin D. McCall
41Patents
26h-index
43Co-inventors
85Inventor score
Filing activity: Apr 4, 1985 → Feb 25, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6832725B2 | Optical reader comprising multiple color illumination | Electricity | 861 | Expired |
| US8544737B2 | Terminal including imaging assembly | Physics | 562 | Active |
| US8723804B2 | Transaction terminal and adaptor therefor | Physics | 546 | Active |
| US8561895B2 | Terminal including imaging assembly | Physics | 546 | Active |
| US8720783B2 | Device and system for processing image data representing bar codes | Physics | 544 | Active |
| US8967468B2 | Terminal including imaging assembly | Physics | 482 | Active |
| US6164544A | Adjustable illumination system for a barcode scanner | Physics | 235 | Expired |
| US6371374B1 | Adjustable illumination system for a barcode scanner | Physics | 231 | Expired |
| US6550679B2 | Image sensor mounting system | Electricity | 201 | Expired |
| US6601768B2 | Imaging module for optical reader comprising refractive diffuser | Physics | 198 | Expired |
| US6607128B1 | Optical assembly for barcode scanner | Physics | 188 | Expired |
| US6659350B2 | Adjustable illumination system for a barcode scanner | Physics | 171 | Expired |
| US6275388A | Image sensor mounting system | Electricity | 164 | Expired |
| US7270274B2 | Imaging module comprising support post for optical reader | Electricity | 141 | Expired |
| US9734493B2 | Terminal including imaging assembly | Physics | 110 | Active |
| USD459728S1 | Optical reader device | General | 109 | Expired |
| US7748620B2 | Transaction terminal including imaging module | Physics | 107 | Active |
| US7296751B2 | Imaging module for optical reader | Physics | 104 | Expired |
| US7121470B2 | Transaction terminal having elongated finger recess | Physics | 101 | Expired |
| US7219841B2 | Device and system for verifying quality of bar codes | Physics | 88 | Expired |
| US6119939A | Optical assembly for barcode scanner | Physics | 62 | Expired |
| US7878403B2 | Image sensor based optical reader | Electricity | 59 | Active |
| US7451917B2 | Transaction terminal comprising imaging module | Physics | 53 | Expired |
| US7533824B2 | Image sensor based optical reader | Electricity | 51 | Active |
| US7500614B2 | Imaging module for optical reader | Physics | 39 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.