Dennis J. Warwick
22Patents
10h-index
24Co-inventors
75Inventor score
Filing activity: Jul 22, 1983 → Nov 11, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5266781A | Modular card processing system | Performing Operations; Transporting | 227 | Expired |
| US6783067B2 | Passport production system and method | Performing Operations; Transporting | 54 | Expired |
| US5037216A | System and method for producing data bearing cards | Physics | 46 | Expired |
| US4519600A | Card feeding, transfer and output apparatus for an automatic embossing system | Performing Operations; Transporting | 43 | Expired |
| US5588763A | System and method for cleaning and producing data bearing cards | Physics | 34 | Expired |
| US5535078A | Magnetic multi-track read/write head with recessed core gap structure and shield arrangement | Physics | 26 | Expired |
| US4995501A | Transport system and method for embossing apparatus | Performing Operations; Transporting | 24 | Expired |
| US5206489A | Magnetic encoding device for cards | Physics | 22 | Expired |
| US5401111A | System and method for cleaning data bearing cards | Physics | 19 | Expired |
| US4937438A | Magnetic encoding apparatus and method | Physics | 18 | Expired |
| US5094336A | Transport system and method for embossing apparatus | Performing Operations; Transporting | 10 | Expired |
| US5070781A | Card embossing apparatus and method | Performing Operations; Transporting | 10 | Expired |
| US4629306A | System for forming picture and alphanumeric images on the surface of a plastic card | Physics | 7 | Expired |
| US5204802A | Method and apparatus for driving and controlling an improved solenoid impact printer | Electricity | 4 | Expired |
| US5453821A | Apparatus for driving and controlling solenoid impact imprinter | Electricity | 4 | Expired |
| US5320435A | Direct solenoid drive imprinting mechanism | Performing Operations; Transporting | 2 | Expired |
| US9346308B2 | Booklet guide and clamp system in a booklet processing mechanism | Performing Operations; Transporting | 2 | Active |
| US10486454B2 | Background image security feature | Performing Operations; Transporting | 0 | Active |
| US7918393B2 | Leafing mechanism | Performing Operations; Transporting | 0 | Active |
| US7441970B2 | Ribbon tensioning mechanisms | Performing Operations; Transporting | 0 | Expired |
| US10112433B2 | Optically variable tactile security feature | Performing Operations; Transporting | 0 | Active |
| US9744791B2 | Booklet spine guidance system in a booklet processing mechanism | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.