Stratus Computer, Inc.
🏢 View company profile →38Patents
0Active
38Granted
38Portfolio score
Filing activity: Oct 1, 1981 → Jul 16, 1998
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5781910A | Preforming concurrent transactions in a replicated database environment | Emerging Cross-Sectional Technologies | 185 | Expired |
| US4453215A | Central processing apparatus for fault-tolerant computing | Physics | 160 | Expired |
| US4654857A | Digital data processor with high reliability | Physics | 151 | Expired |
| US5815649A | Distributed fault tolerant digital data storage subsystem for fault tolerant computer system | Physics | 125 | Expired |
| US4486826A | Computer peripheral control apparatus | Physics | 116 | Expired |
| US5625681A | Method and apparatus for telephone number portability | Electricity | 106 | Expired |
| US4597084A | Computer memory apparatus | Physics | 93 | Expired |
| US4750177A | Digital data processor apparatus with pipelined fault tolerant bus protocol | Physics | 81 | Expired |
| US5630056A | Digital data processing methods and apparatus for fault detection and fault tolerance | Physics | 74 | Expired |
| US5838899A | Digital data processing methods and apparatus for fault isolation | Physics | 73 | Expired |
| US4816990A | Method and apparatus for fault-tolerant computer system having expandable processor section | Physics | 54 | Expired |
| US5968185A | Transparent fault tolerant computer system | Physics | 49 | Expired |
| US5379381A | System using separate transfer circuits for performing different transfer operations respectively and scanning I/O devices status upon absence of both operations | Physics | 49 | Expired |
| US5475860A | Input/output control system and method for direct memory transfer according to location addresses provided by the source unit and destination addresses provided by the destination unit | Physics | 45 | Expired |
| US5220668A | Digital data processor with maintenance and diagnostic system | Physics | 45 | Expired |
| US5802265A | Transparent fault tolerant computer system | Physics | 44 | Expired |
| US6128196A | Circuit board chassis | Electricity | 43 | Expired |
| US5423024A | Fault tolerant processing section with dynamically reconfigurable voting | Physics | 42 | Expired |
| US4866604A | Digital data processing apparatus with pipelined memory cycles | Physics | 41 | Expired |
| US5940490A | Call processing to provide number portability | Electricity | 41 | Expired |
| US5586253A | Method and apparatus for validating I/O addresses in a fault-tolerant computer system | Physics | 41 | Expired |
| US5559459A | Clock signal generation arrangement including digital noise reduction circuit for reducing noise in a digital clocking signal | Physics | 40 | Expired |
| US5390081A | Fault-tolerant power distribution system for rack-mounted hardware | Electricity | 37 | Expired |
| US5243704A | Optimized interconnect networks | Physics | 31 | Expired |
| US5049701A | EMI cabinet with improved interference suppression | Electricity | 30 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.