Ascend Communications, Inc.
🏢 View company profile →29Patents
0Active
29Granted
34Portfolio score
Filing activity: Aug 10, 1990 → Mar 27, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6055575A | Virtual private network system and method | Electricity | 211 | Expired |
| US5850399A | Hierarchical packet scheduling method and apparatus | Electricity | 207 | Expired |
| US6032190A | System and method for processing data packets | Electricity | 172 | Expired |
| US6553002B1 | Apparatus and method for routing data packets through a communications network | Electricity | 112 | Expired |
| US5905730A | High speed packet scheduling method and apparatus | Electricity | 100 | Expired |
| US6078595A | Timing synchronization and switchover in a network switch | Electricity | 99 | Expired |
| US5903564A | Efficient multicast mapping in a network switch | Electricity | 94 | Expired |
| US5953314A | Control processor switchover for a telecommunications switch | Electricity | 93 | Expired |
| US5231649A | Method and apparatus for dynamic bandwidth allocation in a digital communication session | Electricity | 89 | Expired |
| US5991297A | Independently sizable memory pages for a plurality of connection ID types in a network switch | Electricity | 83 | Expired |
| US6259693A | Cell combination to utilize available switch bandwidth | Electricity | 77 | Expired |
| US6008995A | Card cage accommodating PC cards of different size | Electricity | 69 | Expired |
| US5058133A | Method and apparatus for digital communication | Electricity | 56 | Expired |
| US6015300A | Electronic interconnection method and apparatus for minimizing propagation delays | Electricity | 53 | Expired |
| US6463067B1 | Submission and response architecture for route lookup and packet classification requests | Electricity | 45 | Expired |
| US6072397A | Method and apparatus for reducing flame emissions from an electronics enclosure | Mechanical Engineering; Lighting; Heating | 42 | Expired |
| US6587463B1 | Packet classification engine | Electricity | 34 | Expired |
| US6711153B1 | Route lookup engine | Electricity | 31 | Expired |
| US6233243A | Method and apparatus for performing cut-through virtual circuit merging | Electricity | 31 | Expired |
| US6094685A | Use of control blocks to map multiple unidirectional connections | Electricity | 26 | Expired |
| US6097726A | Virtual path merging in a multipoint-to-point network tunneling protocol | Electricity | 19 | Expired |
| US5987520A | Closed user group preprocessing decision for efficient call security validation | Electricity | 19 | Expired |
| US6396838B1 | Management of free space in an ATM virtual connection parameter table | Electricity | 18 | Expired |
| US5864559A | ISDN modem capable of self-configuring to use one of a variety of pre-programmed ISDN protocols | Electricity | 17 | Expired |
| US6320864A | Logical multicasting method and apparatus | Electricity | 16 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.