Inventor

Stephen J. Sicola

Inventor

Monument, CO, US

Overview

1995–2020

Patent span

Physics

Primary field (CPC G)

Patents· 50 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G06Fprimary

G06FElectric digital data processing58%

H04LTransmission of digital information, e.g. telegraphic communication19%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests12%

G11CStatic stores7%

G11BInformation storage based on relative movement between record carrier and transducer5%

PatentTitleYear

10,725,853Systems and methods for memory failure prevention, management, and mitigation2020 10,572,186Random access memory (RAM)-based computer systems, devices, and methods2020 9,645,767'Aggregating storage elements using a virtual controller'2017 9,164,686'Virtual storage space with cyclical wrapping grid function'2015 9,110,731'Hard allocation of resources partitioning'2015 8,392,931'Data transfer protocol for data replication between multiple pairs of storage controllers on a SAN fabric'2013 8,024,602'Multipath redundant storage system architecture and method'2011 7,984,258'Distributed storage system with global sparing'2011 7,966,449'Distributed storage system with global replication'2011 7,913,038'Distributed storage system with accelerated striping'2011 7,886,298'Data transfer protocol for data replication between multiple pairs of storage controllers on a san fabric'2011 7,644,228'Distributed storage system with global replication'2010 7,542,986'System and method for maintaining order for a replicated multi-unit I/O stream'2009 7,542,987'Automatic site failover'2009 7,356,644'Apparatus and method for providing very large virtual storage volumes using redundant arrays of disks'2008 7,350,046'Managed reliability storage system and method monitoring storage conditions'2008 7,149,769'System and method for multi-destination merge in a storage area network'2006 7,137,032'System and method for ensuring merge completion in a storage area network'2006 7,111,189'Method for transaction log failover merging during asynchronous operations in a data storage network'2006 7,058,848'Controller-based remote copy system with logical unit grouping'2006 7,032,131'System and method for ensuring merge completion in a storage area network'2006 7,007,042'System and method for automatic site failover in a storage area network'2006 7,000,069'Apparatus and method for providing very large virtual storage volumes using redundant arrays of disks'2006 6,996,691'Method for transaction command ordering in a remote data replication system'2006 6,996,672'System and method for active-active data replication'2006 6,988,136'Unified management system and method for multi-cabinet data storage complexes'2006 6,947,981'Flexible data replication mechanism'2005 6,934,826'System and method for dynamically allocating memory and managing memory allocated to logging in a storage area network'2005 6,928,513'System and method for managing data logging memory in a storage area network'2005 6,920,511'Method and apparatus for controlling communications in data storage complexes'2005 6,912,599'Method and apparatus for sensing positions of device enclosures within multi-shelf cabinets'2005 6,889,345'System and method for locating a failed storage device in a data storage system'2005 6,880,052'Storage area network, data replication and storage controller, and method for replicating data using virtualized volumes'2005 6,658,540'Method for transaction command ordering in a remote data replication system'2003 6,658,590'Controller-based transaction logging system for data recovery in a storage area network'2003 6,643,795'Controller-based bi-directional remote copy system with storage site failover capability'2003 6,629,264'Controller-based remote copy system with logical unit grouping'2003 6,618,794'System for generating a point-in-time copy of data in a data storage system'2003 6,601,187'System for data replication using redundant pairs of storage controllers, fibre channel fabrics and links therebetween'2003 6,571,324'Warmswap of failed memory modules and data reconstruction in a mirrored writeback cache system'2003 6,356,979'System and method for selectively presenting logical storage units to multiple host operating systems in a networked computing system'2002 6,279,078'Apparatus and method for synchronizing a cache mode in a dual controller, dual cache memory system operating in a plurality of cache modes'2001 6,161,192'Raid array data storage system with storage device consistency bits and raidset consistency bits'2000 5,974,506'Enabling mirror, nonmirror and partial mirror cache modes in a dual cache system'1999 5,938,776'Detection of SCSI devices at illegal locations'1999 5,933,592'Promoting device level error to raidset level error to restore redundacy in a raid array data storage system'1999 5,826,001'Reconstructing data blocks in a raid array data storage system having storage device metadata and raid set metadata'1998 5,790,775'Host transparent storage controller failover/failback of SCSI targets and associated units'1998 5,479,413'Method for testing large memory arrays during system initialization'1995 5,461,588'Memory testing with preservation of in-use data'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–1999Patents assigned to DIGITAL EQUIPMENT CORP (7)· patent assignee history

1995–2020Based in Monument, CO, US· patent location history

2000–2002Patents assigned to COMPAQ COMPUTER CORP (3)· patent assignee history

2003–2013Patents assigned to HEWLETT PACKARD DEVELOPMENT CO (29)· patent assignee history

2003Based in Colorado Springs, CO, US· patent location history

2005–2013Based in Palmer Lake, CO, US· patent location history

2008–2017Patents assigned to SEAGATE TECHNOLOGY LLC (8)· patent assignee history

2013–2017Patents assigned to SICOLA STEPHEN J (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HEWLETT PACKARD DEVELOPMENT CO	29	2003–2013
SEAGATE TECHNOLOGY LLC	8	2008–2017
DIGITAL EQUIPMENT CORP	7	1995–1999
SICOLA STEPHEN Jself	4	2013–2017
COMPAQ COMPUTER CORP	3	2000–2002

Locations

Location	Patents	Span
Monument, CO, US	32	1995–2020
Palmer Lake, CO, US	17	2005–2013
Colorado Springs, CO, US	1	2003