David J. Simons
21Patents
9h-index
25Co-inventors
71Inventor score
Filing activity: Nov 14, 1997 → Mar 25, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7493390B2 | Method and system for supporting the communication of presence information regarding one or more telephony devices | Electricity | 89 | Active |
| US7240366B2 | End-to-end authentication of session initiation protocol messages using certificates | Electricity | 55 | Expired |
| US7266594B2 | Method and system for configuring a computer for real-time communication | Electricity | 28 | Expired |
| US7987233B1 | System and methods for facilitating a multiparty communications session with a dynamically designated session manager | Electricity | 25 | Expired |
| US7412521B2 | End-point identifiers in SIP | Electricity | 24 | Expired |
| US5950575A | Hydronic manifold | Emerging Cross-Sectional Technologies | 22 | Expired |
| US7552204B2 | Method and system for supporting the communication of presence information among computing devices of a network | Electricity | 17 | Expired |
| US7653715B2 | Method and system for supporting the communication of presence information regarding one or more telephony devices | Electricity | 10 | Active |
| US7543061B2 | Method and system for distributing load by redirecting traffic | Electricity | 9 | Active |
| US7801926B2 | Programmable logic and constraints for a dynamically typed storage system | Physics | 4 | Active |
| US8713092B2 | Method and system for distributing load by redirecting traffic | Electricity | 4 | Active |
| US8024470B2 | End-point identifiers in SIP | Electricity | 4 | Active |
| USD723980S1 | Modular sack | General | 4 | Active |
| US9432239B2 | End-point identifiers in SIP | Electricity | 3 | Active |
| US7440858B2 | Poynting-vector based method for determining the bearing and location of electromagnetic sources | Physics | 2 | Expired |
| US8307421B2 | End-to-end authentication of session initiation protocol messages using certificates | Electricity | 2 | Active |
| US8402146B2 | End-point identifiers in SIP | Electricity | 2 | Active |
| US7688805B2 | Webserver with telephony hosting function | Electricity | 1 | Active |
| US8065405B2 | Method and system for supporting the communication of presence information among computing devices of a network | Electricity | 0 | Active |
| US8732818B2 | End-to-end authentication of session initiation protocol messages using certificates | Electricity | 0 | Active |
| US9723093B2 | Method and system for distributing load by redirecting traffic | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.