David E. Young
65Patents
31h-index
49Co-inventors
88Inventor score
Filing activity: Apr 22, 1974 → Jan 13, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6137869A | Network session management | Emerging Cross-Sectional Technologies | 322 | Expired |
| US6157648A | Network session management | Electricity | 310 | Expired |
| US6636504B1 | Reverse billing of internet telephone calls | Electricity | 308 | Expired |
| US7948968B2 | Network session management | Emerging Cross-Sectional Technologies | 275 | Active |
| US6839340B1 | Network session management | Electricity | 268 | Expired |
| US5426687A | Laser targeting device for use with image intensifiers in surgery | Human Necessities | 254 | Expired |
| US6157636A | Network session management with gateway-directory services and authorization control | Electricity | 203 | Expired |
| US5586171A | Selection of a voice recognition data base responsive to video data | Physics | 114 | Expired |
| US6430275B1 | Enhanced signaling for terminating resource | Emerging Cross-Sectional Technologies | 101 | Expired |
| US5429588A | Ankle foot orthoses known as lower leg walkers | Human Necessities | 90 | Expired |
| US6292481A | Inter-carrier signaling and usage accounting architecture for internet telephony | Electricity | 83 | Expired |
| US6295292A | Inbound gateway authorization processing for inter-carrier internet telephony | Electricity | 76 | Expired |
| US4526243A | Drilling head | Fixed Constructions | 75 | Expired |
| US4293047A | Drilling head | Fixed Constructions | 70 | Expired |
| US6419636B1 | System for thermometry-based breast assessment including cancer risk | Human Necessities | 67 | Expired |
| US6179786A | System for thermometry-based breast cancer risk-assessment | Human Necessities | 66 | Expired |
| US4776326A | Modular lower limb bracing system | Human Necessities | 66 | Expired |
| US5997493A | """Hinge with movement limitation""" | Human Necessities | 59 | Expired |
| US6289010A | Inbound gateway authorization processing for inter-carrier internet telephony | Electricity | 57 | Expired |
| US5038765A | Orthopaedic bipivotal hinge and pivot control system therefor | Human Necessities | 55 | Expired |
| US4285406A | Drilling head | Fixed Constructions | 53 | Expired |
| US3967647A | Subsea control valve apparatus | Emerging Cross-Sectional Technologies | 48 | Expired |
| US4500313A | Urethral catheter | Human Necessities | 48 | Expired |
| US4628995A | Gauge carrier | Fixed Constructions | 46 | Expired |
| US4930587A | Coring tool | Fixed Constructions | 43 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.