Inventor

PFEIFER RANDY D

US6 patents

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

AMERICAN TELEPHONE & TELEGRAPH

2 patents

US4835737AMay 30, 1989

Method and apparatus for controlled removal and insertion of circuit modules

AMERICAN TELEPHONE & TELEGRAPH315 citations95

US4805106AFeb 14, 1989

Method of and arrangement for ordering of multiprocessor operations in a multiprocessor system with redundant resources

AMERICAN TELEPHONE & TELEGRAPH83 citations93

NCR CORP

2 patents

US5666407ASep 9, 1997

Software-based bridging system for full duplex audio telephone conferencing

NCR CORP23 citations90

US5848136ADec 8, 1998

State machine and method for monitoring and controlling operating modes in a computer-controlled telephony instrument

NCR CORP2 citations57

IBM

2 patents

US10250686B2Apr 2, 2019

Finding alternate storage locations to support failing disk migration

IBM1 citations62

US10305989B2May 28, 2019

Finding alternate storage locations to support failing disk migration

IBM0 citations51