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Inventor

Mark Douglas McDonald

Inventor
Campbell, CA, US

Overview

15→
Patents
1993–2014
Patent span
Physics
Primary field (CPC G)

Patents· 15 as inventor

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

G09Gprimary
G09GArrangements or circuits for control of indicating devices using static means to present variable information19%
G06KGraphical data reading16%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes13%
G06FElectric digital data processing9%
G07GRegistering the receipt of cash, valuables, or tokens9%
H03KPulse technique9%
G06GAnalogue computers6%
G09FDisplaying6%
H04BTransmission6%
H03DDemodulation or transference of modulation from one carrier to another3%
PatentTitleYear
8,870,056'Multi-use wireless display tag infrastructure and methods'20148,517,265'Error free method for wireless display tag (WDT)'20138,313,025'Wireless display tag (WDT) using active and backscatter transceivers'20128,070,062'Method and system for detecting the presence of a customer proximate to a wireless display tag'20118,061,600'Wireless display tag'20117,604,167'Active backscatter wireless display terminal'20097,600,681'Low power wireless display tag systems and methods'20097,413,121'Multi-use wireless display tag infrastructure and methods'20087,369,019'RF backscatter transmission with zero DC power consumption'20087,090,125'Low power wireless display tag systems and methods'20065,924,019'Radio frequency switch including voltage multiplier'19995,659,885'Radio frequency switch including voltage multiplier'19975,650,743'Common mode controlled signal multiplier'19975,424,692'Switchable impedance circuit'19955,196,742'Low voltage differential circuit'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–1999Patents assigned to NAT SEMICONDUCTOR CORP (5)· patent assignee history
1993–1999Based in Fremont, CA, US· patent location history
1997–2014Based in Campbell, CA, US· patent location history
2006–2014Patents assigned to ALTIERRE CORP (10)· patent assignee history
2011–2014Patents assigned to GOEL ANURAG (5)· patent assignee history
2011–2014Patents assigned to MCDONALD MARK DOUGLAS (5)· patent assignee history
2011–2014Patents assigned to SAXENA SUNIT (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ALTIERRE CORP102006–2014
GOEL ANURAG52011–2014
MCDONALD MARK DOUGLASself52011–2014
NAT SEMICONDUCTOR CORP51993–1999
SAXENA SUNIT52011–2014
Locations
LocationPatentsSpan
Campbell, California, US111997–2014
Fremont, California, US41993–1999