IO-Mega Holding Corporation
419Patents
7Active
419Granted
42Portfolio score
Filing activity: Apr 22, 1981 → Jun 14, 2011 · 6 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6434535B1 | System for prepayment of electronic content using removable media and for prevention of unauthorized copying of same | Physics | 300 | Expired |
| US5459867A | Kernels, description tables, and device drivers | Physics | 230 | Expired |
| US6757698B2 | Method and apparatus for automatically synchronizing data from a host computer to two or more backup data storage locations | Emerging Cross-Sectional Technologies | 166 | Expired |
| US5809520A | Interchangeable cartridge data storage system for devices performing diverse functions | Physics | 139 | Expired |
| US5832244A | Multiple interface input/output port for a peripheral device | Physics | 123 | Expired |
| US5694600A | Methods and apparatus for booting a computer having a removable media disk drive | Physics | 123 | Expired |
| US5778226A | Kernels, description tables and device drivers | Physics | 121 | Expired |
| US4663677A | Magnetic disk drive having a movable drive motor loading mechanism | Physics | 99 | Expired |
| US5159336A | Tape controller with data compression and error correction sharing a common buffer | Physics | 92 | Expired |
| US6170055A | System for computer recovery using removable high capacity media | Physics | 73 | Expired |
| US5638228A | Retroreflective marker for data storage cartridge | Physics | 72 | Expired |
| US6529992B1 | Self-contained application disk for automatically launching application software or starting devices and peripherals | Physics | 67 | Expired |
| US5644444A | Read/write protect scheme for a disk cartridge and drive | Physics | 66 | Expired |
| US5831795A | Head loading mechanism for a disk drive | Physics | 59 | Expired |
| US5166845A | Integrated read/write heads, flexure assembly and air-bearing structure on common unitary substrate | Physics | 59 | Expired |
| USD411824S | Enclosure stand for a miniature electronic storage device | General | 58 | Expired |
| US6016402A | Method for integrating removable media disk drive into operating system recognized as fixed disk type and modifying operating system to recognize as floppy disk type | Physics | 55 | Expired |
| US6317845A | System for computer recovery using removable high capacity media | Physics | 54 | Expired |
| USD388423S | Icon for a computer screen | General | 54 | Expired |
| US5570252A | Disk drive cartridge door | Physics | 50 | Expired |
| USD388421S | Icon for a computer screen | General | 49 | Expired |
| USD388422S | Icon for a computer screen | General | 49 | Expired |
| US6073201A | Multiple interface input/output port allows communication between the interface bus of the peripheral device and any one of the plurality of different types of interface buses | Physics | 48 | Expired |
| US4740851A | Disk drive with spicule member | Physics | 46 | Expired |
| US6496362B2 | Method and apparatus for protecting a hard disk drive from shock | Physics | 45 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.