Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6317498 | Mail processing system including data center verification for mailpieces | George Brookner, Robert A. Cordery, Hyung-kun Kim | 2001-11-13 |
| 5737424 | Method and system for secure distribution of protected data using elliptic curve systems | Laszlo Elteto | 1998-04-07 |
| 5666421 | Mail processing system including data center verification for mailpieces | George Brookner, Robert A. Cordery, Hyung-kun Kim | 1997-09-09 |
| 5390251 | Mail processing system including data center verification for mailpieces | George Brookner, Robert A. Cordery, Hyung-kun Kim | 1995-02-14 |
| 5239168 | Postage meter with barcode printing capability | Robert T. Durst, Jr., Kevin D. Hunter | 1993-08-24 |
| 5170044 | Error tolerant 3x3 bit-map coding of binary data and method of decoding | — | 1992-12-08 |
| 5164996 | Optical character recognition by detecting geo features | — | 1992-11-17 |
| 5142577 | Method and apparatus for authenticating messages | — | 1992-08-25 |
| 5073935 | Method for secure communication | — | 1991-12-17 |
| 5031215 | Unambiguous alphabet for data compression | — | 1991-07-09 |
| 5025479 | Recognition method for character set | — | 1991-06-18 |
| 4949381 | Electronic indicia in bit-mapped form | — | 1990-08-14 |
| 4935961 | Method and apparatus for the generation and synchronization of cryptographic keys | Joseph L. Gargiulo | 1990-06-19 |
| 4893338 | System for conveying information for the reliable authentification of a plurality of documents | — | 1990-01-09 |
| 4891750 | Optical character recognition by forming and detecting matrices of geo features | Evelina I. Zemelman | 1990-01-02 |
| 4888803 | Method and apparatus for verifying a value for a batch of items | — | 1989-12-19 |
| 4878246 | Method and apparatus for generating encryption/decryption key | Maya R. Barton | 1989-10-31 |
| 4873645 | Secure postage dispensing system | Kevin D. Hunter, Robert T. Durst, Jr. | 1989-10-10 |
| 4853961 | Reliable document authentication system | — | 1989-08-01 |
| 4835713 | Postage meter with coded graphic information in the indicia | — | 1989-05-30 |
| 4574357 | Real time character thinning system | Harry L. Parker, David H. Wilson | 1986-03-04 |
| 4539704 | Image thinning process | — | 1985-09-03 |