Inventor

SMITH RICHARD K

US12 patents

⚠️ This page may combine multiple inventors who share the name “SMITH RICHARD K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PARADYNE CORP

5 patents

US5841840ANov 24, 1998

Multiple line modem and method for providing voice on demand

PARADYNE CORP186 citations98

US5901205AMay 4, 1999

Adaptive voice and data bandwidth management system for multiple-line digital subscriber loop data communications

PARADYNE CORP112 citations97

US5636282AJun 3, 1997

Method for dial-in access security using a multimedia modem

PARADYNE CORP124 citations97

US5602846AFeb 11, 1997

Simultaneous voice and data call establishment using a simultaneous voice and data modem pool and private branch exchange facilities

PARADYNE CORP126 citations97

US4645871AFeb 24, 1987

Non-interfering in-band protocol-independent diagnostic scanning in a digital multipoint communication system

PARADYNE CORP20 citations81

AT & T BELL LAB

2 patents

US5311596AMay 10, 1994

Continuous authentication using an in-band or out-of-band side channel

AT & T BELL LAB341 citations98

US5301246AApr 5, 1994

Data communications equipment security device using calling party directory number

AT & T BELL LAB100 citations94

AT & T CORP

2 patents

US5537436AJul 16, 1996

Simultaneous analog and digital communication applications

AT & T CORP230 citations97

US5537441AJul 16, 1996

Controlled simultaneous analog and digital communication

AT & T CORP24 citations92

SMITH RICHARD K

2 patents

US4405303ASep 20, 1983

Portable recreational marker buoy

SMITH RICHARD K18 citations71

US4068576AJan 17, 1978

Hand-operated press for baling newspapers

SMITH RICHARD K6 citations60

INGERSOLL RAND CO

1 patent

US6135216AOct 24, 2000

Venting and sealing system for down-hole drills

INGERSOLL RAND CO40 citations92