Frank Check
50Patents
18h-index
17Co-inventors
81Inventor score
Filing activity: Oct 16, 1973 → Jun 4, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4310720A | Computer accessing system | Emerging Cross-Sectional Technologies | 179 | Expired |
| US3978457A | Microcomputerized electronic postage meter system | Physics | 165 | Expired |
| US4097923A | Remote postage meter charging system using an advanced microcomputerized postage meter | Physics | 137 | Expired |
| US6758402B1 | Bioptical holographic laser scanning system | Physics | 113 | Expired |
| US3938095A | Computer responsive postage meter | Physics | 81 | Expired |
| US4629871A | Electronic postage meter system settable by means of a remotely generated input device | Physics | 81 | Expired |
| US4271481A | Micro computerized electronic postage meter system | Physics | 50 | Expired |
| US4306299A | Postage meter having means transferring data from a working memory to a non-volatile memory under low power conditions | Physics | 47 | Expired |
| US4050374A | Meter setting mechanism | Physics | 43 | Expired |
| US4386272A | Apparatus and method for generating images by producing light spots of different sizes | Electricity | 42 | Expired |
| US4180856A | Electronic postage metering system | Physics | 39 | Expired |
| US4310754A | Communication means with transducer physically spaced from interior wall of secure housing | Physics | 37 | Expired |
| US4809021A | Apparatus and method for generating images by producing light spots of different sizes | Electricity | 28 | Expired |
| US4340896A | Impulse ink jet ink delivery apparatus | Performing Operations; Transporting | 27 | Expired |
| US4251874A | Electronic postal meter system | Physics | 26 | Expired |
| US4566106A | Electronic postage meter having redundant memory | Physics | 24 | Expired |
| US4471441A | Electronic postal meter system | Physics | 20 | Expired |
| US4310757A | Apparatus for correcting scanning speed in a polygon used for laser scanning | Electricity | 20 | Expired |
| US4214157A | Apparatus and method for correcting imperfection in a polygon used for laser scanning | Electricity | 18 | Expired |
| US7051922B2 | Compact bioptical laser scanning system | Physics | 17 | Expired |
| US6158659A | Holographic laser scanning system having multiple laser scanning stations for producing a 3-D scanning volume substantially free of spatially and temporally coincident scanning planes | Physics | 16 | Expired |
| US4675841A | Micro computerized electronic postage meter system | Physics | 15 | Expired |
| US4376981A | Electronic postage metering system | Physics | 15 | Expired |
| US4239088A | Scale with weight-to-period transducer | Physics | 14 | Expired |
| US6991167B2 | Bioptical laser scanning system providing 360° of omnidirectional bar code symbol scanning coverage at a point of sale (POS) station | Physics | 14 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.