Leon A. Pintsov
101Patents
35h-index
75Co-inventors
93Inventor score
Filing activity: Jul 14, 1983 → Mar 15, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5586036A | Postage payment system with security for sensitive mailer data and enhanced carrier data functionality | Physics | 271 | Expired |
| US5923406A | Personal postage stamp vending machine | Physics | 186 | Expired |
| US5454038A | Electronic data interchange postage evidencing system | Physics | 183 | Expired |
| US5796841A | Secure user certification for electronic commerce employing value metering system | Electricity | 173 | Expired |
| US5612889A | Mail processing system with unique mailpiece authorization assigned in advance of mailpieces entering carrier service mail processing stream | Physics | 163 | Expired |
| US4800505A | Mail preparation system | Physics | 154 | Expired |
| US5448641A | Postal rating system with verifiable integrity | Physics | 141 | Expired |
| US5812666A | Cryptographic key management and validation system | Physics | 113 | Expired |
| US6385504B1 | Mail processing system with unique mailpiece authorization assigned in advance of mailpieces entering carrier service mail processing stream | Physics | 110 | Expired |
| US5655023A | Advanced postage payment system employing pre-computed digital tokens and with enhanced security | Physics | 109 | Expired |
| US4628532A | Alphanumeric handprint recognition | Physics | 100 | Expired |
| US5781634A | Electronic data interchange postage evidencing system | Physics | 89 | Expired |
| US5768132A | Controlled acceptance mail system securely enabling reuse of digital token initially generated for a mailpiece on a subsequently prepared different mailpiece to authenticate payment of postage | Physics | 87 | Expired |
| US5793867A | System and method for disaster recovery in an open metering system | Physics | 79 | Expired |
| US5936865A | Mail processing system with unique mailpiece authorization assigned in advance of mailpieces entering carrier service mail processing stream | Physics | 73 | Expired |
| US6463354B1 | System and method for automatic notification of upcoming delivery of mail item | Physics | 66 | Expired |
| US5953427A | Electronic data interchange postage evidencing system | Physics | 62 | Expired |
| US5661803A | Method of token verification in a key management system | Physics | 61 | Expired |
| US6532452B1 | System and method for employing digital postage marks as part of value-added services in a mailing system | Physics | 59 | Expired |
| US6061671A | System and method for disaster recovery in an open metering system | Physics | 58 | Expired |
| US6058193A | System and method of verifying cryptographic postage evidencing using a fixed key set | Physics | 56 | Expired |
| US7266531B2 | Mail processing system with unique mailpiece authorization assigned in advance of mailpieces entering carrier service mail processing stream | Physics | 51 | Expired |
| US5974147A | Method of verifying unreadable indicia for an information-based indicia program | Physics | 50 | Expired |
| US5308932A | Mail processing system for verifying postage amount | Physics | 49 | Expired |
| US6546377B1 | Virtual postage meter with multiple origins of deposit | Physics | 48 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.