QuadTech, Inc.
🏢 View company profile →102Patents
21Active
102Granted
46Portfolio score
Filing activity: Mar 29, 1985 → Nov 18, 2016 · 8 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5457515A | Method for forming a graphic image web | Performing Operations; Transporting | 141 | Expired |
| US5724259A | System and method for monitoring color in a printing press | Performing Operations; Transporting | 87 | Expired |
| US5453926A | Touch screen system for a web folder | Physics | 66 | Expired |
| US5689425A | Color registration system for a printing press | Physics | 65 | Expired |
| US5967050A | Markless color control in a printing press | Electricity | 65 | Expired |
| US5357448A | Method and apparatus for controlling the printing of an image having a plurality of printed colors | Performing Operations; Transporting | 57 | Expired |
| US5102110A | Temporal synchronizer for application of printing to a moving substrate | Performing Operations; Transporting | 55 | Expired |
| US5547175A | Apparatus and method for preparing mail products | Performing Operations; Transporting | 48 | Expired |
| US4887530A | Web registration control system | Performing Operations; Transporting | 44 | Expired |
| US4729282A | Sheet diverter for signature collation and method thereof | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5230501A | Apparatus and method for integrating an insert assembly on a printing press | Performing Operations; Transporting | 42 | Expired |
| US4736446A | Cutoff control system | Performing Operations; Transporting | 41 | Expired |
| US5881538A | Method of producing a printed product having a packaged compact disk | Performing Operations; Transporting | 40 | Expired |
| US5967049A | Ink key control in a printing press including lateral ink spread, ink saturation, and back-flow compensation | Performing Operations; Transporting | 36 | Expired |
| US7017492B2 | Coordinating the functioning of a color control system and a defect detection system for a printing press | Performing Operations; Transporting | 35 | Expired |
| US5266995A | Method for forming a graphic image web | Physics | 34 | Expired |
| US5013022A | Apparatus and method for assembling signatures | Performing Operations; Transporting | 34 | Expired |
| US5100116A | Apparatus and method of processing signatures | Performing Operations; Transporting | 32 | Expired |
| US6318260A | Ink key control in a printing press including lateral ink spread, ink saturation, and back-flow compensation | Performing Operations; Transporting | 32 | Expired |
| US5988620A | Apparatus and method for personalizing printed materials | Performing Operations; Transporting | 32 | Expired |
| US5184555A | Apparatus for reducing chill roll condensation | Performing Operations; Transporting | 31 | Expired |
| US5025610A | Apparatus and method for selectively packaging magazines | Performing Operations; Transporting | 31 | Expired |
| US5285238A | Method for forming a graphic image web | Physics | 30 | Expired |
| US4882764A | Cutoff control system | Performing Operations; Transporting | 30 | Expired |
| US5076163A | Web registration control system | Performing Operations; Transporting | 30 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.