Plus Development
13Patents
0Active
13Granted
31Portfolio score
Filing activity: Apr 29, 1985 → Mar 27, 1989
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4639863A | Modular unitary disk file subsystem | Emerging Cross-Sectional Technologies | 125 | Expired |
| US4647997A | Aerodynamic latch for disk file actuator | Physics | 77 | Expired |
| US4772974A | Compact head and disk assembly | Physics | 61 | Expired |
| US4712146A | Thin and compact micro-Winchester head and disk assembly | Physics | 44 | Expired |
| US4858034A | Modular unitary disk file subsystem with differing density zones | Physics | 43 | Expired |
| USD311737S | Removable hard disk drive module | General | 40 | Expired |
| US4825321A | Modular unitary disk file subsystem having increased data storage capacity | Physics | 34 | Expired |
| US4914530A | Media defect management within disk drive sector format | Physics | 29 | Expired |
| US4882671A | Microprocessor controlled rigid disk file subsystem | Physics | 28 | Expired |
| US4819153A | Microprocessor controlled rigid disk file subsystem | Physics | 24 | Expired |
| US4860194A | A method for using a modular unitary disk file subsystem | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4703176A | Compact polyphase optical position encoder | Physics | 15 | Expired |
| US4661696A | Optical encoder which use a rectangular photodetector array | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.