Inventor

Stewart H. Maxwell

Inventor

Dallas, TX, US

Overview

19→

Patents

2000–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 19 as inventor

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

H04Wprimary

H04WWireless communication networks53%

H04LTransmission of digital information, e.g. telegraphic communication22%

H04MTelephonic communication16%

H04QSelecting6%

G06FElectric digital data processing3%

PatentTitleYear

10,575,309Providing a data function in an access gateway node2020 10,039,109Providing a data function in an access gateway node2018 9,504,043'Providing a data function in an access gateway node'2016 9,504,044'Providing a data function in an access gateway node'2016 9,019,891'Providing a data function in an access gateway node'2015 8,599,752'Providing a data function in an access gateway node'2013 8,576,700'Geographic redundancy for call servers in a cellular system based on a bearer-independent core network'2013 8,443,087'System for managing sessions and connections in a network'2013 7,995,564'Geographic redundancy for call servers in a cellular system based on a bearer-independent core network'2011 7,869,393'Providing a data function in an access gateway node'2011 7,773,571'Transfer of policy and charging rules during MIP handover'2010 7,660,584'Using an access point name to select an access gateway node'2010 7,532,568'Geographic redundancy for call servers in a cellular system based on a bearer-independent core network'2009 6,490,451'System and method for providing packet-switched telephony'2002 6,470,181'Method and apparatus for simultaneous text and audio for sponsored calls'2002 6,374,110'Interface between cellular and wired networks with enhanced subscriber mobility'2002 6,181,927'Sponsored call and cell service'2001 6,175,622'Virtual private network for a telephone network'2001 6,167,271'Interface between cellular and wired networks with enhanced subscriber mobility'2000

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000–2020Based in Dallas, TX, US· patent location history

2002–2011Patents assigned to NORTEL NETWORKS LTD (8)· patent assignee history

2013–2020Patents assigned to APPLE INC (6)· patent assignee history

2013–2015Patents assigned to BENNETT ANTHONY D (2)· patent assignee history

2013–2015Patents assigned to CORUM ERIC C (2)· patent assignee history

2013–2015Patents assigned to ERHART WESLEY R (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NORTEL NETWORKS LTD	8	2002–2011
APPLE INC	6	2013–2020
BENNETT ANTHONY D	2	2013–2015
CORUM ERIC C	2	2013–2015
ERHART WESLEY R	2	2013–2015

Locations

Location	Patents	Span
Dallas, Texas, US	19	2000–2020