Umax Data Systems, Inc.
179Patents
0Active
179Granted
41Portfolio score
Filing activity: Feb 13, 1989 → May 16, 2003
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD369149S | Computer video information converter | General | 55 | Expired |
| US6628416B1 | Method and user interface for performing a scan operation for a scanner coupled to a computer system | Electricity | 47 | Expired |
| US5398808A | Buffer device for packings | Performing Operations; Transporting | 38 | Expired |
| US6650442B1 | Multiple non-directional scanning | Electricity | 37 | Expired |
| USD370667S | Computer image converter | General | 35 | Expired |
| US5719386A | High efficiency multi-image scan method | Electricity | 34 | Expired |
| USD318654S | Image scanner | General | 31 | Expired |
| USD388773S | Scanner | General | 29 | Expired |
| US5912711A | Apparatus for converting and scaling non-interlaced VGA signal to interlaced TV signal | Physics | 24 | Expired |
| US6648483B1 | Concave mirror optical system for scanner | Physics | 24 | Expired |
| USD382857S | Mini computer video information converter | General | 22 | Expired |
| US5514864A | Photo electric feedback compensation controlled apparatus | Physics | 20 | Expired |
| US6252684A | Automatic paper feeder including an upper light source | Electricity | 20 | Expired |
| US6002508A | Optical scanner | Electricity | 19 | Expired |
| US6141119A | Imaging cartridge for a computer system | Electricity | 19 | Expired |
| US6091516A | Device for holding and moving a contact image sensor | Electricity | 17 | Expired |
| USD394047S | Scanner | General | 17 | Expired |
| US6161966A | Multi-blade lens-aperture control mechanism | Physics | 16 | Expired |
| US5818973A | Apparatus for digital correction in an image system | Electricity | 16 | Expired |
| USD377168S | Visual image scanner | General | 15 | Expired |
| US5769515A | Optical scanners with an improved chassis locking means | Emerging Cross-Sectional Technologies | 14 | Expired |
| USD370893S | Image scanner | General | 14 | Expired |
| USD405066S | Scanner | General | 14 | Expired |
| USD389468S | Wave shaped scanner | General | 14 | Expired |
| US5652665A | Transparency adapter for flatbed scanners | Electricity | 14 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.