Check Technology Corporation
10Patents
0Active
10Granted
29Portfolio score
Filing activity: Oct 14, 1983 → May 22, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4560293A | Document printing method and apparatus | Performing Operations; Transporting | 32 | Expired |
| US5696690A | Sheet stacking apparatus | Physics | 19 | Expired |
| US6604017B1 | Printing system | Physics | 15 | Expired |
| US5644494A | Printing system | Physics | 11 | Expired |
| US5867393A | Printing system | Physics | 9 | Expired |
| US5917727A | Sheet registration system | Physics | 8 | Expired |
| US5748483A | Printing system | Physics | 8 | Expired |
| US4862225A | Power supply sequencing circuit for flash fuser | Physics | 7 | Expired |
| US5237898A | Autotaper | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5790408A | Error recovery in a printing system | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.