Andrew Birrell
27Patents
15h-index
27Co-inventors
81Inventor score
Filing activity: Jun 22, 1989 → Feb 5, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5235642A | Access control subsystem and method for distributed computer system using locally cached authentication credentials | Physics | 498 | Expired |
| US6332175A | Low power system and method for playing compressed audio data | Physics | 437 | Expired |
| US5805803A | Secure web tunnel | Electricity | 380 | Expired |
| US6185551A | Web-based electronic mail service apparatus and method using full text and label indexing | Emerging Cross-Sectional Technologies | 231 | Expired |
| US6009462A | Replacing large bit component of electronic mail (e-mail) message with hot-link in distributed computer system | Electricity | 206 | Expired |
| US5088091A | High-speed mesh connected local area network | Electricity | 205 | Expired |
| US6189026A | Technique for dynamically generating an address book in a distributed electronic mail system | Electricity | 179 | Expired |
| US6029164A | Method and apparatus for organizing and accessing electronic mail messages using labels and full text and label indexing | Emerging Cross-Sectional Technologies | 177 | Expired |
| US6092101A | Method for filtering mail messages for a plurality of client computers connected to a mail service system | Physics | 149 | Expired |
| US5446901A | Fault tolerant distributed garbage collection system and method for collecting network objects | Physics | 112 | Expired |
| US7529834B1 | Method and system for cooperatively backing up data on computers in a network | Physics | 69 | Expired |
| US8239954B2 | Access control based on program properties | Physics | 35 | Active |
| US6718321B2 | Web-based electronic mail server apparatus and method using full text and label indexing | Emerging Cross-Sectional Technologies | 35 | Expired |
| US6098936A | Portable ergonomic work station | Emerging Cross-Sectional Technologies | 30 | Expired |
| US7480761B2 | System and methods for an overlay disk and cache using portable flash memory | Physics | 20 | Expired |
| US7398349B2 | System and methods for an overlay disk and cache using portable flash memory | Physics | 14 | Expired |
| US7716734B2 | Systems and methods for pattern matching on principal names to control access to computing resources | Physics | 10 | Active |
| US7380051B2 | System and methods for an overlay disk and cache using portable flash memory | Physics | 10 | Expired |
| US7273345B2 | Method for operating a turbo engine and turbo engine | Emerging Cross-Sectional Technologies | 9 | Expired |
| US7660993B2 | Cryptographic puzzle cancellation service for deterring bulk electronic mail messages | Electricity | 8 | Expired |
| US7908265B2 | Transactional memory with dynamic separation | Physics | 5 | Active |
| US8201142B2 | Description language for structured graphs | Physics | 3 | Active |
| US7987365B2 | Subscription-based computing implemented in hardware of computing device | Electricity | 3 | Active |
| US8458724B2 | Automatic mutual exclusion | Physics | 3 | Active |
| US8930961B2 | Automatic mutual exclusion | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.