Inventor
CAMPBELL ALAN J
US29 patents
⚠️ This page may combine multiple inventors who share the name “CAMPBELL ALAN J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ROCKWELL AUTOMATION TECH INC
11 patentsUS7253577B2Aug 7, 2007
Independent safety processor for disabling the operation of high power devices
ROCKWELL AUTOMATION TECH INC29 citations89
US10872044B1Dec 22, 2020
Distributed processing via open ring bus structure
ROCKWELL AUTOMATION TECH INC7 citations84
US7243173B2Jul 10, 2007
Low protocol, high speed serial transfer for intra-board or inter-board data communication
ROCKWELL AUTOMATION TECH INC19 citations84
US8675376B2Mar 18, 2014
Power layer generation of inverter gate drive signals
ROCKWELL AUTOMATION TECH INC9 citations83
US11480445B2Oct 25, 2022
Method and apparatus for industrial product tamper detection
ROCKWELL AUTOMATION TECH INC3 citations71
US11764994B2Sep 19, 2023
Daisy chaining point-to-point link sensors
ROCKWELL AUTOMATION TECH INC0 citations62
US11102030B2Aug 24, 2021
Daisy chaining point-to-point link sensors
ROCKWELL AUTOMATION TECH INC0 citations62
US8046179B2Oct 25, 2011
Power converter disable verification system and method
ROCKWELL AUTOMATION TECH INC4 citations55
US11139768B2Oct 5, 2021
Motor drive with independent physical backplane communication
ROCKWELL AUTOMATION TECH INC0 citations51
US11338785B2May 24, 2022
Extending the life of electromagnetic brake control circuits
ROCKWELL AUTOMATION TECH INC0 citations45
US11296640B2Apr 5, 2022
Motor drive with dynamic interval communication
ROCKWELL AUTOMATION TECH INC0 citations43
CAMPBELL ALAN J
7 patentsUS8072174B2Dec 6, 2011
Motor controller with integrated serial interface having selectable synchronization and communications
CAMPBELL ALAN J21 citations90
US8400791B2Mar 19, 2013
Power layer generation of inverter gate drive signals
CAMPBELL ALAN J14 citations82
US8248009B2Aug 21, 2012
Motor controller having integrated communications configurations
CAMPBELL ALAN J10 citations78
US9577424B2Feb 21, 2017
Parallel motor drive disable verification system and method
CAMPBELL ALAN J4 citations72
US8212514B2Jul 3, 2012
Serial interface motor controller having user configurable communications speeds
CAMPBELL ALAN J4 citations57
US8080965B2Dec 20, 2011
Motor controller with deterministic synchronous interrupt having multiple serial interface backplane
CAMPBELL ALAN J1 citations47
US8593090B2Nov 26, 2013
Motor controller having integrated communications configurations
CAMPBELL ALAN J1 citations46
GLATFELTER CORP
3 patentsUS12285504B2Apr 29, 2025
Dispersible nonwoven materials including CMC-based binders
GLATFELTER CORP0 citations60
US11806976B2Nov 7, 2023
Nonwoven material with high core bicomponent fibers
GLATFELTER CORP0 citations53
US11692291B2Jul 4, 2023
Nonwoven material with high core bicomponent fibers
GLATFELTER CORP0 citations53