permaTek, Inc.
5Patents
0Active
5Granted
30Portfolio score
Filing activity: Apr 30, 1980 → Jun 6, 1984
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4420282A | Method for binding books | Performing Operations; Transporting | 37 | Expired |
| US4569620A | Book turn-around and stack accumulator apparatus | Performing Operations; Transporting | 17 | Expired |
| US4565477A | Method of casing-in books | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4505629A | Book binding machine | Performing Operations; Transporting | 12 | Expired |
| US4526642A | Flyleaf heat sealer | Emerging Cross-Sectional Technologies | 11 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.