PRC Inc.
33Patents
0Active
33Granted
39Portfolio score
Filing activity: Jul 29, 1983 → May 24, 2001
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6839850B1 | Method and system for detecting intrusion into and misuse of a data processing system | Electricity | 215 | Expired |
| US6408391B1 | Dynamic system defense for information warfare | Physics | 198 | Expired |
| US6134664A | Method and system for reducing the volume of audit data and normalizing the audit data received from heterogeneous sources | Physics | 148 | Expired |
| US6442557B1 | Evaluation of enterprise architecture model including relational database | Emerging Cross-Sectional Technologies | 116 | Expired |
| US6509828B2 | Interrogating tags on multiple frequencies and synchronizing databases using transferable agents | Emerging Cross-Sectional Technologies | 82 | Expired |
| US6069310A | Method of controlling remote equipment over the internet and a method of subscribing to a subscription service for controlling remote equipment over the internet | Physics | 53 | Expired |
| US5987135A | System and method for controlling and monitoring remote distributed processing system | Physics | 53 | Expired |
| US6496774B1 | Automatic vehicle routing and recommendation system | Physics | 48 | Expired |
| US5211424A | Secure passport document and method of making the same | Emerging Cross-Sectional Technologies | 42 | Expired |
| US5910903A | Method and apparatus for verifying, analyzing and optimizing a distributed simulation | Physics | 32 | Expired |
| US4777639A | Laser optical element mounting arrangement and method | Physics | 24 | Expired |
| US6615135B2 | Satellite based on-board vehicle navigation system including predictive filtering and map-matching to reduce errors in a vehicular position | Physics | 23 | Expired |
| US6741743B2 | Imaged document optical correlation and conversion system | Physics | 19 | Expired |
| US5250314A | Three dimensional food product forming apparatus and method | Human Necessities | 14 | Expired |
| USD402381S | Injection molded lattice | General | 14 | Expired |
| US5470596A | Food product forming apparatus and method | Human Necessities | 13 | Expired |
| US4923364A | Gas laser apparatus, method and turbine compressor therefor | Electricity | 12 | Expired |
| US4817111A | Gas laser apparatus, method and turbine compressor therefor | Electricity | 10 | Expired |
| US4622675A | Forced transport molecular gas laser and method | Electricity | 9 | Expired |
| US5141408A | Product pumping apparatus | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6246819A | Fiber optic cladding displacement connector | Physics | 9 | Expired |
| US7019773B1 | Video mosaic | Electricity | 8 | Expired |
| US6225961A | Beam waveguide antenna with independently steerable antenna beams and method of compensating for planetary aberration in antenna beam tracking of spacecraft | Electricity | 7 | Expired |
| US4794613A | Laser fluid flow control apparatus and method | Electricity | 6 | Expired |
| US4617667A | Gas laser tube assembly | Electricity | 6 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.