Redcom Laboratories, Inc.
17Patents
5Active
17Granted
51Portfolio score
Filing activity: May 29, 1979 → Apr 18, 2022 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5239542A | Time division multiplex switching system for interconnecting telephone circuits which operate in accordance with different signalling systems and call formats | Electricity | 120 | Expired |
| US4228536A | Time division digital communication system | Electricity | 47 | Expired |
| US4850011A | Key telephone system providing selection of key or PBX operational modes | Electricity | 41 | Expired |
| US4527012A | Communications switching system with modular switching communications peripheral and host computer | Electricity | 27 | Expired |
| US4229816A | Timing signal generation and distribution system for TDM telecommunications systems | Electricity | 18 | Expired |
| USD275279S | High density component mounting back panel for electronic equipment | General | 15 | Expired |
| US4314110A | System for the testing of telephone switching systems | Electricity | 15 | Expired |
| USD321511S | Key telephone set | General | 14 | Expired |
| US6243274A | Shields for electronic components with ready access to shielded components | Electricity | 14 | Expired |
| US5754863A | System for downloading program code to a microprocessor operative as a slave to a master microprocessor | Physics | 11 | Expired |
| US4524245A | Ring trip detection system | Electricity | 9 | Expired |
| US5257260A | Expanding switching capability of a time division communication system by multiplexing groups of circuits into successions | Electricity | 7 | Expired |
| US11700125B2 | zkMFA: zero-knowledge based multi-factor authentication system | Electricity | 1 | Active |
| US11831778B2 | zkMFA: zero-knowledge based multi-factor authentication system | Electricity | 0 | Active |
| US7920831B2 | PTT/PTS signaling in an internet protocol network | Electricity | 0 | Active |
| US8239829B2 | User co-routine interface for customizing SIP and SDP protocols | Physics | 0 | Active |
| US8125983B2 | VoIP telecommunications switch | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.