SK Engineering, Ltd.
7Patents
0Active
7Granted
24Portfolio score
Filing activity: Jun 26, 1987 → Jul 14, 1994
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5223069A | Web auto-splicer | Performing Operations; Transporting | 66 | Expired |
| US5213036A | Sheet feeding apparatus | Performing Operations; Transporting | 18 | Expired |
| US5366217A | Sheet stacker | Performing Operations; Transporting | 18 | Expired |
| US4795297A | Apparatus for feeding boards | Performing Operations; Transporting | 5 | Expired |
| US5456803A | Papermaking apparatus and multi-layer paper forming apparatus | Textiles; Paper | 5 | Expired |
| US5445713A | Apparatus for use in making multilayered paper | Textiles; Paper | 5 | Expired |
| US5556513A | Multi-layer paper sheet forming system | Textiles; Paper | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.